Rabies is a fatal viral zoonosis and a serious public health problem.1 All mammals are believed to be susceptible to the disease, and for purposes of this document, use of the term animal refers to mammals. The disease is an acute, progressive encephalitis caused by a lyssavirus. Rabies virus is the most important lyssavirus globally. In the United States, multiple rabies virus variants are maintained in wild mammalian reservoir populations, such as raccoons, skunks, foxes, and bats. Although the United States has been declared free from transmission of canine rabies virus variants, there is always a risk of reintroduction of these variants.2–6
The virus is usually transmitted from animal to animal through bites. The incubation period is highly variable. In domestic animals, it is generally 3 to 12 weeks but can range from several days to months, rarely exceeding 6 months.7 Rabies is communicable during the period of salivary shedding of rabies virus. Experimental and historic evidence document that dogs, cats, and ferrets shed virus a few days prior to clinical onset and during illness. Clinical signs of rabies are variable and include inappetence, dysphagia, cranial nerve deficits, abnormal behavior, ataxia, paralysis, altered vocalization, and seizures. Progression to death is rapid. There are currently no known effective rabies antiviral drugs.
The recommendations in this compendium serve as a basis for animal rabies prevention and control programs throughout the United States and facilitate standardization of procedures among jurisdictions, thereby contributing to an effective national rabies control program. This document is reviewed and revised as necessary. The most current version replaces all previous versions. These recommendations do not supersede state and local laws or requirements. Principles of rabies prevention and control are detailed in Part I, recommendations for parenteral vaccination procedures are presented in Part II, and all animal rabies vaccines licensed by the USDA and marketed in the United States are listed and described (Appendices A and B).
Part I: Rabies Prevention and Control
Principles of rabies prevention and control
Case definition
An animal is determined to be rabid after diagnosis by a qualified laboratory. The national case definition for animal rabies requires laboratory confirmation on the basis of positive results of a direct fluorescent antibody test (preferably performed on CNS tissue) or isolation of rabies virus (in cell culture or in a laboratory animal).8
Rabies exposure
Rabies is transmitted when the virus is introduced into bite wounds, into open cuts in skin, or onto mucous membranes from saliva or other potentially infectious material such as neural tissue.9 Questions regarding possible exposures should be directed promptly to state or local public health authorities.
Public health education
Essential components of rabies prevention and control include ongoing public education, responsible pet ownership, routine veterinary care and vaccination, and professional continuing education. Most animal and human exposures to rabies can be prevented by raising awareness concerning rabies transmission routes, avoiding contact with wildlife, and following appropriate veterinary care. Prompt recognition and reporting of possible exposures to medical professionals and local public health authorities are critical.
Human rabies prevention
Rabies in humans can be prevented either by eliminating exposures to rabid animals or by providing exposed persons with prompt local treatment of wounds combined with the appropriate administration of human rabies immune globulin and vaccine. Exposure assessment should occur before postexposure rabies prophylaxis is initiated and should include discussion between medical providers and public health officials. The rationale for recommending preexposure prophylaxis and details of preexposure and postexposure prophylaxis administration can be found in the current recommendations of the Advisory Committee on Immunization Practices.9,10 These recommendations, along with information concerning the current local and regional epidemiology of animal rabies and the availability of human rabies biologics, are available from state health departments.
Domestic animal vaccination
Multiple vaccines are licensed for use in domestic animal species. Vaccines available include inactivated or modified-live virus vectored products, products for IM and SC administration, products with durations of immunity from 1 to 4 years, and products with various minimum ages of vaccination. The recommended vaccination procedures are specified in Part II, and the licensed animal vaccines are summarized (Appendix A). Local governments should initiate and maintain effective programs to ensure vaccination of all dogs, cats, and ferrets and to remove strays and unwanted animals. Such procedures in the United States have reduced laboratory-confirmed cases of rabies in dogs from 6,949 in 1947 to 93 in 2009.2 Because more rabies cases are reported annually involving cats (274 in 2009) than dogs, vaccination of cats should be required.2 Animal shelters and animal control authorities should establish policies to ensure that adopted animals are vaccinated against rabies.
Rabies in vaccinated animals
Rabies is rare in vaccinated animals.11–13 If such an event is suspected, it should be reported to public health officials, the vaccine manufacturer, and the USDA APHIS Center for Veterinary Biologics (www.aphis.usda.gov/animal_health/vet_biologics/vb_adverse_event.shtml; 800-752-6255). The laboratory diagnosis should be confirmed and the virus variant characterized by the CDC rabies reference laboratory. A thorough epidemiological investigation including documentation of the animal's vaccination history and a description of potential rabies exposures should be conducted.
Rabies in wildlife
The control of rabies among wildlife reservoirs is difficult.14 Vaccination of free-ranging wildlife or selective population reduction is useful in some situations,15 but the success of such procedures depends on the circumstances surrounding each rabies outbreak (see Prevention and Control Methods Related to Wildlife). Because of the risk of rabies in wild animals (especially raccoons, skunks, coyotes, foxes, and bats), the AVMA, American Public Health Association, Council of State and Territorial Epidemiologists, National Animal Control Association, and National Association of State Public Health Veterinarians strongly recommend the enactment and enforcement of state laws prohibiting their importation, distribution, translocation, and private ownership.
Rabies surveillance
Enhanced laboratory-based rabies surveillance and variant typing are essential components of rabies prevention and control programs. Accurate and timely information and reporting are necessary to guide human postexposure rabies prophylaxis decisions, determine the management of potentially exposed animals, aid in emerging pathogen discovery, describe the epidemiology of the disease, and assess the need for and effectiveness of vaccination programs for domestic animals and wildlife. Every animal submitted for rabies testing should be reported to the CDC to evaluate surveillance trends. Electronic laboratory reporting and notification of animal rabies surveillance data should be implemented.16 Optimal information on animals submitted for rabies testing should include species, point location, vaccination history, rabies virus variant (if rabid), and human or domestic animal exposures. Rabid animals with a history of importation within 60 days into the United States are immediately notifiable by state health departments to the CDC; all indigenous cases should follow standard notification protocols.17 Integration with standard public health reporting and notification systems should facilitate the transmission of the above data elements.
Rabies Diagnosis
The direct fluorescent antibody test is the gold standard for rabies diagnosis. The direct fluorescent antibody test should be performed in accordance with the established national standardized protocol (www.cdc.gov/rabies/pdf/RabiesDFASPv2.pdf) by a qualified laboratory that has been designated by the local or state health department.18,19 Animals submitted for rabies testing should be euthanized20,21 in such a way as to maintain the integrity of the brain so that the laboratory can recognize the anatomic parts. Except in the case of very small animals, such as bats, only the head or brain (including brainstem) should be submitted to the laboratory. To facilitate prompt laboratory testing, submitted specimens should be stored and shipped under refrigeration without delay. The need to thaw frozen specimens will delay testing. Chemical fixation of tissues should be avoided to prevent consequential testing delays and because it might preclude reliable testing. Questions about testing of fixed tissues should be directed to the local rabies laboratory or public health department.
Rabies testing should be available on an emergency basis to expedite exposure management decisions.18 When confirmatory testing is needed by state health departments (eg, inconclusive results, unusual species, and mass exposures), the CDC rabies laboratory can provide results within 24 hours of submission.22
A direct rapid immunohistochemical test is being used by trained field personnel in surveillance programs for specimens not involved in human or domestic animal exposures.23–26 All positive direct rapid immunohistochemical test results need to be confirmed by direct fluorescent antibody testing at a qualified laboratory.
Currently, there are no USDA-licensed rapid test kits commercially available for rabies diagnosis. Unlicensed tests should not be used owing to several concerns: the sensitivity and specificity are not known, the tests have not been validated against current standard methods, the excretion of virus in the saliva is intermittent and the amount varies over time, any test result would need to be confirmed by more reliable methods such as direct fluorescent antibody testing on brain tissue, and the interpretation of results may place exposed animals and persons at risk.
Rabies serology
Some jurisdictions require evidence of vaccination and rabies virus antibodies for animal importation purposes. Rabies virus antibody titers are indicative of a response to vaccine or infection. Titers do not directly correlate with protection because other immunologic factors also play a role in preventing rabies and our abilities to measure and interpret those other factors are not well developed. Therefore, evidence of circulating rabies virus antibodies in animals should not be used as a substitute for current vaccination in managing rabies exposures or determining the need for booster vaccinations.27–30
Rabies research
Information derived from well-designed studies is essential for the development of science-based recommendations. Data are needed in several areas, including viral shedding periods for domestic livestock and lagomorphs, potential shedding of virus in milk, earliest age at which rabies vaccination is effective and protective effect of maternal antibody, duration of immunity, post-exposure prophylaxis protocols for domestic animals, models for treatment of clinical rabies, extralabel vaccine use in domestic animals and wildlife rabies reservoirs, host-pathogen adaptations and dynamics, and the ecology of wildlife rabies reservoir species, especially in relation to the use of oral rabies vaccines.
Prevention and control methods in domestic and confined animals
Preexposure vaccination and management
Parenteral animal rabies vaccines should be administered only by or under the direct supervision of a licensed veterinarian on premises. Rabies vaccinations may also be administered under the supervision of a licensed veterinarian to animals held in animal control shelters before release. The veterinarian signing a rabies vaccination certificate must ensure that the person administering the vaccine is identified on the certificate and is appropriately trained in vaccine storage, handling, and administration and in the management of adverse events. This practice assures that a qualified and responsible person can be held accountable for properly vaccinating the animal. Within 28 days after initial vaccination, a peak rabies virus antibody titer is reached, and the animal can be considered immunized.29,31–33 An animal is currently vaccinated and is considered immunized if the initial vaccination was administered at least 28 days previously or booster vaccinations have been administered in accordance with this compendium.
Regardless of the age of the animal at initial vaccination, a booster vaccination should be administered 1 year later (see Part II for procedures; Appendix A). No laboratory or epidemiological data exist to support the annual or biennial administration of 3- or 4-year vaccines after the initial series. Because a rapid anamnestic response is expected, an animal is considered currently vaccinated immediately after a booster vaccination.34
• Dogs, cats, and ferrets: All dogs, cats, and ferrets should be vaccinated against rabies and revaccinated in accordance with this compendium (Appendix A). If a previously vaccinated animal is overdue for a booster, it should be revaccinated. Immediately after the booster, the animal is considered currently vaccinated and should be placed on a booster schedule, depending on the labeled duration of the vaccine used.
• Livestock: All horses should be vaccinated against rabies.35 Livestock, including species for which licensed vaccines are not available, that have frequent contact with humans (eg, in petting zoos, fairs, and other public exhibitions) should be vaccinated against rabies.36,37 Consideration should also be given to vaccinating livestock that are particularly valuable.
• Captive wild animals and hybrids (the offspring of wild animals crossbred to domestic animals): Wild animals or hybrids should not be kept as pets.38–40 No parenteral rabies vaccines are licensed for use in wild animals or hybrids.41 Animals that are maintained in exhibits and in zoological parks and are not completely excluded from all contact with rabies vectors can become infected. Moreover, wild animals might be incubating rabies when initially captured; therefore, wild-caught animals susceptible to rabies should be quarantined for a minimum of 6 months. Employees who work with animals at such facilities should receive preexposure rabies vaccination. The use of preexposure or postexposure rabies vaccinations for handlers who work with animals at such facilities might reduce the need for euthanasia of captive animals that expose handlers. Carnivores and bats should be housed in a manner that precludes direct contact with the public.36,37
Stray animals
Stray dogs, cats, and ferrets should be removed from the community. Local health departments and animal control officials can enforce the removal of strays more effectively if owned animals are required to have identification and be confined or kept on leash. Strays should be impounded for at least 3 business days to determine whether human exposure has occurred and to give owners sufficient time to reclaim animals.
Importation and interstate movement of animals
• International: The CDC regulates the importation of dogs and cats into the United States.5 Importers of dogs must comply with rabies vaccination requirements (42 CFR, Part 71.51 [c] [www.cdc.gov/animalimportation/dogs.html]) and complete CDC form 75.37 (www.cdc.gov/animalimportation/pdf/dog-import.pdf). These regulations require dogs imported from rabies endemic countries to be vaccinated for rabies and confined for different timeframes depending on age, prior vaccination status, and country of origin. The appropriate health official of the state of destination should be notified within 72 hours of the arrival of any imported dog required to be placed in confinement under these regulations. Failure of the owner to comply with these confinement requirements should be promptly reported to the CDC Division of Global Migration and Quarantine (404-639-4528 or 404-639-4537). Federal regulations alone are insufficient to prevent the introduction of rabid animals into the United States.3,4,42,43 All imported dogs and cats are subject to state and local laws governing rabies and should be currently vaccinated against rabies in accordance with this compendium. Failure of the owner to comply with state or local requirements should be referred to the appropriate state or local official.
• Areas with dog-dog rabies transmission: Canine rabies virus variants have been eliminated in the United States.2,6 Rabid dogs have been introduced into the continental United States from areas with dog-dog rabies transmission.3,4,42,43 The movement of dogs for the purposes of adoption or sale from areas with dog-dog rabies transmission increases the risk of introducing canine-transmitted rabies to areas where it does not currently exist and should be prohibited.
• Interstate: Before interstate (including commonwealths and territories) movement, dogs, cats, ferrets, and horses should be currently vaccinated against rabies in accordance with this compendium's recommendations (see Preexposure vaccination and management under Prevention and Control Methods in Domestic and Confined Animals). Animals in transit should be accompanied by a currently valid National Association of State Public Health Veterinarians Form 51, Rabies Vaccination Certificate (www.nasphv.org/Documents/RabiesVacCert.pdf). When an interstate health certificate or certificate of veterinary inspection is required, it should contain the same rabies vaccination information as Form 51.
Adjunct procedures
Methods or procedures that enhance rabies control include the following (www.rabiesblueprint.com/spip.php?article119):
• Identification: Dogs, cats, and ferrets should be identified (eg, metal or plastic tags or microchips) to allow for verification of rabies vaccination status.
• Licensure: Registration or licensure of all dogs, cats, and ferrets is an integral component of an effective rabies control program. A fee is frequently charged for such licensure, and revenues collected are used to maintain rabies or animal control activities. Evidence of current vaccination should be an essential prerequisite to licensure.
• Canvassing: House-to-house canvassing by animal control officials facilitates enforcement of vaccination and licensure requirements.
• Citations: Citations are legal summonses issued to owners for violations, including the failure to vaccinate or license their animals. The authority for officers to issue citations should be an integral part of each animal control program.
• Animal control: All local jurisdictions should incorporate stray animal control, leash laws, animal bite prevention, and training of personnel in their programs.
• Public education: All local jurisdictions should incorporate education covering responsible pet ownership, bite prevention, and appropriate veterinary care in their programs.
Postexposure management
This section refers to any animal exposed (see Rabies exposure under Principles of Rabies Prevention and Control) to a confirmed or suspected rabid animal. Wild mammalian carnivores or bats that are not available or suitable for testing should be regarded as rabid animals.
• Dogs, cats, and ferrets: Any illness in an exposed animal should be reported immediately to the local health department. If signs suggestive of rabies develop (eg, paralysis and seizures), the animal should be euthanized and the head shipped for testing as described.
○ Dogs, cats, and ferrets that have never been vaccinated and are exposed to a rabid animal should be euthanized immediately. If the owner is unwilling to have this done, the animal should be placed in strict isolation for 6 months. Isolation in this context refers to confinement in an enclosure that precludes direct contact with people and other animals. Rabies vaccine should be administered upon entry into isolation or up to 28 days before release to comply with preexposure vaccination recommendations (see Preexposure vaccination and management under Prevention and Control Methods in Domestic and Confined Animals). There are currently no USDA-licensed biologics for postexposure prophylaxis of previously unvaccinated domestic animals, and there is evidence that the use of vaccine alone will not reliably prevent the disease in these animals.44
○ Animals overdue for a booster vaccination should be evaluated on a case-by-case basis based upon severity of exposure, time elapsed since last vaccination, number of previous vaccinations, current health status, and local rabies epidemiology to determine need for euthanasia or immediate revaccination and observation and isolation.
○ Dogs, cats, and ferrets that are currently vaccinated should be revaccinated immediately, kept under the owner's control, and observed for 45 days. The rationale for an observation period is based in part on the potential for overwhelming viral challenge, incomplete vaccine efficacy, improper vaccine administration, variable host immunocompetence, and immune-mediated fatality (ie, early death phenomenon).12,45–47
• Livestock: All species of livestock are susceptible to rabies; cattle and horses are the most frequently reported infected species.2 Any illness in an exposed animal should be reported immediately to the local health and agriculture officials. If signs suggestive of rabies develop, the animal should be euthanized and the head shipped for testing as described.
○ Unvaccinated livestock should be euthanized immediately. If the animal is not euthanized, it should be observed and confined on a case-by-case basis for 6 months.
○ Livestock exposed to a rabid animal and currently vaccinated with a vaccine approved by the USDA for that species should be revaccinated immediately and observed for 45 days.
○ Multiple rabid animals in a herd or herbivore-to-herbivore transmission are uncommon48; therefore, restricting the rest of the herd if a single animal has been exposed to or infected by rabies is usually not necessary.
○ Handling and consumption of tissues from exposed animals might carry a risk for rabies transmission. Risk factors depend in part on the sites of exposure, the amount of virus present, the severity of wounds, and whether sufficient contaminated tissue has been excised. If an exposed animal is to be custom-slaughtered or home-slaughtered for consumption, it should be done immediately after exposure and all tissues should be cooked thoroughly. Persons handling exposed animals, carcasses, and tissues should use barrier precautions.49,50 Historically, federal guidelines for meat inspectors required that any animal known to have been exposed to rabies within the previous 8 months be rejected for slaughter.51 The USDA Food Safety and Inspection Service and state meat inspectors should be notified if such exposures occur in food animals before slaughter. Rabies virus is widely distributed in tissues of rabid animals.52–54 Tissues and products from a rabid animal should not be used for human or animal consumption55,56 or transplantation.57 Pasteurization and cooking will inactivate rabies virus58; therefore, inadvertently drinking pasteurized milk or eating thoroughly cooked animal products does not constitute a rabies exposure.
• Other animals: Other mammals exposed to a rabid animal should be euthanized immediately. Animals maintained in USDA-licensed research facilities or accredited zoological parks should be evaluated on a case-by-case basis in consultation with public health authorities. Management options may include isolation, observation, or administration of rabies biologics.
Management of animals that bite humans
• Dogs, cats, and ferrets: Rabies virus is excreted in the saliva of infected dogs, cats, and ferrets during illness or for only a few days before illness or death.59–61 Regardless of rabies vaccination status, a healthy dog, cat, or ferret that exposes a person should be confined and observed daily for 10 days from the time of the exposure62; administration of rabies vaccine to the animal is not recommended during the observation period to avoid confusing signs of rabies with rare adverse reactions.13 Any illness in the animal should be reported immediately to the local health department. Such animals should be evaluated by a veterinarian at the first sign of illness during confinement. If signs suggestive of rabies develop, the animal should be euthanized and the head submitted for testing as described. Any stray or unwanted dog, cat, or ferret that exposes a person may be euthanized immediately and the head submitted for rabies examination.
• Other animals: Other animals that might have exposed a person to rabies should be reported immediately to the local health department. Management of animals other than dogs, cats, and ferrets depends on the species, the circumstances of the exposure, the epidemiology of rabies in the area, the exposing animal's history, current health status, and the animal's potential for exposure to rabies. The shedding period for rabies virus is undetermined for most species. Previous vaccination of these animals might not preclude the necessity for euthanasia and testing.
Outbreak prevention and control
The emergence of new rabies virus variants or the introduction of nonindigenous viruses poses a serious risk to humans, domestic animals, and wildlife.63–70 A rapid and comprehensive response includes the following measures71:
• Characterize the virus at the national reference laboratory.
• Identify and control the source of the introduction.
• Enhance laboratory-based surveillance in wild and domestic animals.
• Increase animal rabies vaccination rates.
• Restrict the movement of animals.
• Evaluate the need for vector population reduction.
• Coordinate a multiagency response.
• Provide public and professional outreach and education.
Disaster response
Animals might be displaced during and after man-made or natural disasters and require emergency sheltering (www.bt.cdc.gov/disasters/petshelters.asp and www.avma.org/disaster/default.asp).72 Animal rabies vaccination and exposure histories often are not available for displaced animals. Disaster response creates situations where animal caretakers might lack appropriate training and preexposure vaccination. In such situations, it is critical to implement and coordinate rabies prevention and control measures to reduce the risk of rabies transmission and the need for human postexposure rabies prophylaxis. Such measures include the following actions:
• Coordinate relief efforts of individuals and organizations with the local emergency operations center before deployment.
• Examine each animal at a triage site for possible bite injuries or signs of rabies.
• Isolate animals with signs of rabies, pending evaluation by a veterinarian.
• Ensure that all animals have a unique identifier.
• Administer a rabies vaccination to all dogs, cats, and ferrets unless reliable proof of vaccination exists.
• Adopt minimum standards for animal caretakers as feasible, including personal protective equipment, preexposure rabies vaccination, and appropriate training in animal handling.73
• Maintain documentation of animal disposition and location (eg, returned to owner, died or euthanized, adopted, relocated to another shelter, and address of new location).
• Provide facilities to confine and observe animals involved in exposures (see Management of animals that bite humans under Prevention and Control Methods in Domestic and Confined Animals).
• Report human exposures to appropriate public health authorities (see Public health education under Principles of Rabies Prevention and Control).
Prevention and control methods related to wildlife
The public should be warned not to handle or feed wild mammals. Wild mammals and hybrids that expose persons, pets, or livestock should be considered for euthanasia and rabies diagnosis. A person exposed by any wild mammal should immediately report the incident to a health-care provider who, in consultation with public health authorities, can evaluate the need for postexposure rabies prophylaxis.9,10
Translocation of infected wildlife has contributed to the spread of rabies63–68,74; therefore, the translocation of known terrestrial rabies reservoir species should be prohibited. Whereas state-regulated wildlife rehabilitators and nuisance wildlife control operators may play a role in a comprehensive rabies control program, minimum standards for persons who handle wild mammals should include rabies vaccination, appropriate training, and continuing education.
Carnivores
The use of oral rabies vaccines for the mass vaccination of free-ranging wildlife should be considered in selected situations, with the approval of the appropriate state agencies.14,75 There have been documented successes of use of oral rabies vaccines to control rabies in wildlife in North America.75–78 The currently licensed vaccinia-vectored oral rabies vaccines is labeled for use in raccoons and coyotes. The distribution of oral rabies vaccines should be performed on the basis of scientific assessments of the target species and followed by timely and appropriate analysis of surveillance data; such results should be provided to all stakeholders. In addition, parenteral (trap-vaccinate-release) vaccination of wildlife rabies reservoirs may be integrated into coordinated oral rabies vaccines programs to enhance their effectiveness. Continuous and persistent programs for trapping or poisoning wildlife are not effective in reducing wildlife rabies reservoirs on a statewide basis. However, limited population control in high-contact areas (eg, picnic grounds, camps, and suburban areas) might be indicated for the removal of selected high-risk species of wildlife. State agriculture, public health, and wildlife agencies should be consulted for planning, coordination, and evaluation of vaccination or population reduction programs.14
Bats
From the 1950s to date, indigenous rabid bats have been reported from every state except Hawaii and have caused rabies in at least 43 humans in the United States.79–92 Bats should be excluded appropriately from houses, public buildings, and adjacent structures to prevent direct association with humans.93,94 Such structures should then be made bat-proof by sealing entrances used by bats. Controlling rabies in bats through programs designed to reduce bat populations is neither feasible nor desirable.
Part II: Recommendations for Parenteral Rabies Vaccination Procedures
Vaccine administration—All animal rabies vaccines should be restricted to use by or under the direct supervision of a veterinarian,95 except as recommended in Preexposure Vaccination and Management under Prevention and Control Methods in Domestic and Confined Animals.
Vaccine selection—All vaccines licensed by the USDA and marketed in the United States at the time of publication are summarized (Appendix A). New vaccine approvals or changes in label specifications made subsequent to publication should be considered as part of this list. Any of the listed vaccines can be used for revaccination, even if the product is not the same as previously administered. Vaccines used in state and local rabies control programs should have at least a 3-year duration of immunity. This constitutes the most effective method of increasing the proportion of immunized dogs and cats in any population.96 No laboratory or epidemiological data exist to support the annual or biennial administration of 3- or 4-year vaccines following the initial series.
Adverse events—Currently, no epidemiological association exists between a particular licensed vaccine product and adverse events.13,97–99 Although rare, adverse events have been reported, including vomiting, injection-site swelling, lethargy, hypersensitivity, and rabies in a previously vaccinated animal. Adverse events should be reported to the vaccine manufacturer and to the USDA APHIS Center for Veterinary Biologics (www.aphis.usda.gov/animal_health/vet_biologics/vb_adverse_event.shtml; 800-752-6255). No contraindication to rabies vaccination exists. Animals with a previous history of anaphylaxis can be medically managed and observed after vaccination.46
Wildlife and hybrid animal vaccination—The safety and efficacy of parenteral rabies vaccination of wildlife and hybrids have not been established, and no rabies vaccines are licensed for these animals. Zoos or research institutions may establish vaccination programs to attempt to protect valuable animals, but these should not replace appropriate public health activities that protect humans (see Preexposure Vaccination and Management under Prevention and Control Methods in Domestic and Confined Animals).
Accidental human exposure to vaccine—Human exposure to licensed parenteral animal rabies vaccines listed does not constitute a risk for rabies virus infection (Appendix A). Human exposure to vaccinia-vectored oral rabies vaccines should be reported to state health officials.100,101
Rabies certificate—All agencies and veterinarians should use the National Association of State Public Health Veterinarians Form 51 (revised 2007) Rabies Vaccination Certificate or an equivalent. This form can be obtained from vaccine manufacturers, the National Association of State Public Health Veterinarians (www.nasphv.org/Documents/RabiesVacCert.pdf), or the CDC (www.cdc.gov/rabies/pdf/nasphv_form51.pdf). The form must be completed in full and signed by the administering or supervising veterinarian. Computer-generated forms containing the same information are also acceptable.
References
1. Rabies. In: Heymann D, ed. Control of communicable diseases manual. 19th ed. Washington, DC: American Public Health Association, 2008; 498–508.
2. Blanton JD, Palmer D, Christian KA, et al. Rabies surveillance in the United States during 2009. J Am Vet Med Assoc 2010; 237: 646–657.
3. Castrodale L, Walker V, Baldwin J, et al. Rabies in a puppy imported from India to the USA, March 2007. Zoonoses Public Health 2008; 55: 427–430.
4. CDC. Rabies in a dog imported from Iraq—New Jersey, June 2008 (Erratum published in MMWR Morb Mortal Wkly Rep 2008; 57:1106). MMWR Morb Mortal Wkly Rep 2008; 57: 1076–1078.
5. McQuiston JH, Wilson T, Harris S, et al. Importation of dogs into the United States: risks from rabies and other zoonotic diseases. Zoonoses Public Health 2008; 55: 421–426.
6. Velasco-Villa A, Reeder SA, Orciari LA, et al. Enzootic rabies elimination from dogs and reemergence in wild terrestrial carnivores, United States. Emerg Infect Dis 2008; 14: 1849–1854.
7. Beran GW. Rabies and infections by rabies-related viruses. In: Beran GW, ed. Handbook of zoonoses. Section B: viral. 2nd ed. Boca Raton, Fla: CRC Press, 1994; 307–357.
8. Council of State and Territorial Epidemiologists. Public health reporting and national notification for animal rabies. Infectious disease positions statements, June 2009. Atlanta: Council of State and Territorial Epidemiologists, 2009. Available at: www.cste.org/ps2009/09-ID-12.pdf. Accessed May 30, 2011.
9. Manning SE, Rupprecht CE, Fishbein D, et al. Human rabies prevention—United States, 2008. Recommendations of the Advisory Committee on Immunization Practices. MMWR Recomm Rep 2008; 57 (RR-3): 1–28.
10. Rupprecht CE, Briggs D, Brown CM, et al. Use of reduced (4-dose) vaccine schedule for postexposure prophylaxis to prevent human rabies. Recommendations of the Advisory Committee on Immunization Practices (Erratum published in MMWR Recomm Rep 2010; 59:493). MMWR Recomm Rep 2010; 59 (RR-2): 1–12.
11. McQuiston J, Yager PA, Smith JS, et al. Epidemiologic characteristics of rabies virus variants in dogs and cats in the United States, 1999. J Am Vet Med Assoc 2001; 218: 1939–1942.
12. Murray KO, Holmes KC, Hanlon CA. Rabies in vaccinated dogs and cats in the United States, 1997–2001. J Am Vet Med Assoc 2009; 235: 691–695.
13. Frana TS, Clough NE, Gatewood DM, et al. Postmarketing surveillance of rabies vaccines for dogs to evaluate safety and efficacy. J Am Vet Med Assoc 2008; 232: 1000–1002.
14. Hanlon CA, Childs JE, Nettles VF, et al. Recommendations of the Working Group on Rabies. Article III: rabies in wildlife. J Am Vet Med Assoc 1999; 215: 1612–1618.
15. Slate D, Algeo TD, Nelson KM, et al. Oral rabies vaccination in North America: opportunities, complexities, and challenges. PLoS Negl Imp Dis 2009; 3: 1–9.
16. Council of State and Territorial Epidemiologists. Electronic laboratory reporting in the US: underfunded and under potential, or, recommendations for the implementation of ELR in the US. Policy positions statements, June 2009. Atlanta: Council of State and Territorial Epidemiologists, 2009. Available at: www.cste.org/ps2009/09-SI-03.pdf. Accessed May 30, 2011.
17. Council of State and Territorial Epidemiologists. Process statement for immediately nationally notifiable conditions. Policy positions statements, June 2009. Atlanta: Council of State and Territorial Epidemiologists, 2009. Available at: www.cste.org/ps2009/09-SI-04.pdf. Accessed May 30, 2011.
18. Hanlon CA, Smith JS, Anderson GR, et al. Recommendations of the Working Group on Rabies. Article II: laboratory diagnosis of rabies. J Am Vet Med Assoc 1999; 215: 1444–1446.
19. Rudd RJ, Smith JS, Yager PA, et al. A need for standardized rabies-virus diagnostic procedures: effect of cover-glass mountant on the reliability of antigen detection by the fluorescent antibody test. Virus Res 2005; 111: 83–88.
20. AVMA. AVMA guidelines on euthanasia, June 2007. Available at: www.avma.org/issues/animal_welfare/euthanasia.pdf. Accessed May 30, 2011.
21. Michigan Rabies Working Group. Humane euthanasia of bats for public health rabies testing. 2008. Available at: www.michigan.gov/documents/emergingdiseases/Humane_Euthanasia_of_Bats-Final_244979_7.pdf. Accessed May 30, 2011.
22. CDC. Public health response to a potentially rabid bear cub—Iowa, 1999. MMWR Morb Mortal Wkly Rep 1999; 48: 971–973.
23. Niezgoda M, Rupprecht CE. Standard operating procedure for the direct rapid immunohistochemistry test for the detection of rabies virus antigen. National Laboratory Training Network Course. Atlanta: US Department of Health and Human Services, CDC, 2006; 1–16. Available at: www.rabiesblueprint.com/IMG/pdf/DRIT_SOP.pdf. Accessed May 30, 2011.
24. Lembo T, Niezgoda M, Velasco-Villa A, et al. Evaluation of a direct, rapid immunohistochemical test for rabies diagnosis. Emerg Infect Dis 2006; 12: 310–313.
25. Dürr S, Naïssengar S, Mindekem R, et al. Rabies diagnosis for developing countries. PLoS Negl Trop Dis 2008; 26: e206.
26. Saturday GA, King R, Fuhrmann L. Validation and operational application of a rapid method for rabies antigen detection. US Army Med Dep J 2009;Jan-Mar: 42–45.
27. Tizard I, Ni Y. Use of serologic testing to assess immune status of companion animals. J Am Vet Med Assoc 1998; 213: 54–60.
28. Greene CE, ed. Rabies and other Lyssavirus infections. In: Infectious diseases of the dog and cat. 3rd ed. London: Saunders Elsevier, 2006; 167–183.
29. Rupprecht CE, Gilbert J, Pitts R, et al. Evaluation of an inactivated rabies virus vaccine in domestic ferrets. J Am Vet Med Assoc 1990; 196: 1614–1616.
30. Moore SM, Hanlon CA. Rabies-specific antibodies: measuring surrogates of protection against a fatal disease. PLoS Negl Trop Dis 2010; 9: e595.
31. Aubert MF. Practical significance of rabies antibodies in cats and dogs. Rev Sci Tech 1992; 11: 735–760.
32. Muirhead TL, McClure JT, Wichtel JJ, et al. The effect of age on serum antibody titers after rabies and influenza vaccination in healthy horses. J Vet Intern Med 2008; 22: 654–661.
33. Shimazaki Y, Inoue S, Takahashi C, et al. Immune response to Japanese rabies vaccine in domestic dogs. J Vet Med B Infect Dis Vet Public Health 2003; 50: 95–98.
34. Cliquet F, Verdier Y, Sagné L, et al. Neutralising antibody titration in 25,000 sera of dogs and cats vaccinated against rabies in France, in the framework of the new regulations that offer an alternative to quarantine. Rev Sci Tech 2003; 22: 857–866.
35. American Association of Equine Practitioners. Guidelines for the vaccination of horses. Rabies. Available at: www.aaep.org/rabies.htm. Accessed May 30, 2011.
36. National Association of State Public Health Veterinarians, CDC, Council of State and Territorial Epidemiologists, et al. Compendium of measures to prevent disease and injury associated with animals in public settings, 2007. MMWR Recomm Rep 2007; 56 (RR05): 1–13.
37. Bender J, Schulman S. Reports of zoonotic disease outbreaks associated with animal exhibits and availability of recommendations for preventing zoonotic disease transmission from animals to people in such settings. J Am Vet Med Assoc 2004; 224: 1105–1109.
38. AVMA. Private ownership of wild animals. Available at: www.avma.org/issues/policy/wild_animal_ownership.asp. Accessed May 30, 2011.
39. AVMA. Position on canine hybrids. Available at: www.avma.org/issues/policy/canine_hybrids.asp. Accessed May 30, 2011.
40. Siino BS. Crossing the line: the case against hybrids. ASPCA Animal Watch 2000;Winter: 22–29.
41. Jay MT, Reilly KF, DeBess EE, et al. Rabies in a vaccinated wolf-dog hybrid. J Am Vet Med Assoc 1994; 205: 1729–1732.
42. CDC. An imported case of rabies in an immunized dog. MMWR Morb Mortal Wkly Rep 1987; 36: 94–96.
43. CDC. Imported dog and cat rabies—New Hampshire, California. MMWR Morb Mortal Wkly Rep 1988; 37: 559–560.
44. Hanlon CA, Niezgoda MN, Rupprecht CE. Postexposure prophylaxis for prevention of rabies in dogs. Am J Vet Res 2002; 63: 1096–1100.
45.9 CFR §113.209.
46. Greene CE. Immunoprophylaxis. In: Infectious diseases of the dog and cat. 3rd ed. London: Saunders Elsevier, 2006; 1069–1119.
47. Willoughby RE Jr. “Early death” and the contraindication of vaccine during rabies treatment. Vaccine 2009; 27: 7173–7177.
48. Mansfield K, McElhinney L, Hübschle O, et al. A molecular epidemiological study of rabies epizootics in kudu (Tragelaphus strepsiceros) in Namibia. BMC Vet Res 2006; 2: 2.
49. US Department of Health and Human Services. Viral agents. In: Biosafety in microbiological and biomedical laboratories. 5th ed. Washington, DC: US Government Printing Office; 2007; 234–235.
50. Wertheim HFL, Nguyen TQ, Nguyen KAT, et al. Furious rabies after an atypical exposure. PLoS Med 2009; 6: e44.
51. US Meat and Poultry Inspection Program. Ante-mortem inspection. In: Meat and poultry inspection manual. Washington, DC: US Government Printing Office, 1973; 314.
52. Debbie JG, Trimarchi CV. Pantropism of rabies virus in free-ranging rabid red fox (Vulpes fulva). J Wildl Dis 1970; 6: 500–506.
53. Fekadu M, Shaddock JH. Peripheral distribution of virus in dogs inoculated with two strains of rabies virus. Am J Vet Res 1984; 45: 724–729.
54. Charlton, KM. The pathogenesis of rabies and other lyssaviral infections: recent studies. Curr Top Microbiol Immunol 1994; 187: 95–119.
55. Afshar A. A review of non-bite transmission of rabies virus infection. Br Vet J 1979; 135: 142–148.
56. CDC. Mass treatment of humans who drank unpasteurized milk from rabid cows—Massachusetts, 1996–1998 (Erratum published in MMWR Morb Mortal Wkly Rep 1999; 48:274). MMWR Morb Mortal Wkly Rep 1999; 48: 228–229.
57. CDC. Public health service guideline on infectious disease issues in xenotransplantation. MMWR Recomm Rep 2001; 50 (RR-15): 1–56.
58. Turner GS, Kaplan C. Some properties of fixed rabies virus. J Gen Virol 1967; 1: 537–551.
59. Vaughn JB, Gerhardt P, Paterson J. Excretion of street rabies virus in saliva of cats. J Am Med Assoc 1963; 184: 705.
60. Vaughn JB Jr, Gerhardt P, Newell KW. Excretion of street rabies virus in the saliva of dogs. J Am Med Assoc 1965; 193: 363–368.
61. Niezgoda M, Briggs DJ, Shaddock J, et al. Viral excretion in domestic ferrets (Mustela putorius furo) inoculated with a raccoon rabies isolate. Am J Vet Res 1998; 59: 1629–1632.
62. Tepsumethanon V, Lumlertdacha B, Mitmoonpitak C, et al. Survival of naturally infected rabid dogs and cats. Clin Infect Dis 2004; 39: 278–280.
63. Jenkins SR, Perry BD, Winkler WG. Ecology and epidemiology of raccoon rabies. Rev Infect Dis 1988; 10 (suppl 4): S620–S625.
64. CDC. Translocation of coyote rabies—Florida, 1994. MMWR Morb Mortal Wkly Rep 1995; 44: 580–7.
65. Rupprecht CE, Smith JS, Fekadu M, et al. The ascension of wildlife rabies: a cause for public health concern or intervention? Emerg Infect Dis 1995; 1: 107–114.
66. Constantine DG. Geographic translocation of bats: known and potential problems. Emerg Infect Dis 2003; 9: 17–21.
67. Krebs JW, Strine TW, Smith JS, et al. Rabies surveillance in the United States during 1993. J Am Vet Med Assoc 1994; 205: 1695–1709.
68. Nettles VF, Shaddock JH, Sikes RK, et al. Rabies in translocated raccoons. Am J Public Health 1979; 69: 601–602.
69. Engeman RM, Christensen KL, Pipas MJ, et al. Population monitoring in support of a rabies vaccination program for skunks in Arizona. J Wildl Dis 2003; 39: 746–750.
70. Leslie MJ, Messenger S, Rohde RE, et al. Bat-associated rabies virus in skunks. Emerg Infect Dis 2006; 12: 1274–1277.
71. Rupprecht CE, Hanlon CA, Slate D. Control and prevention of rabies in animals: paradigm shifts. Dev Biol (Basel) 2006; 125: 103–111.
72.Pets Evacuation and Transportations Standards Act of 2006. Public Law 109–308.
73. National Animal Control Association. National Animal Control Association guidelines. Available at: www.nacanet.org/guidelines.html. Accessed May 30, 2011.
74. Chipman R, Slate D, Rupprecht C, et al. Downside risk of wildlife translocation. Dev Biol (Basel) 2008; 131: 223–232.
75. Slate D, Rupprecht CE, Rooney JA, et al. Status of oral rabies vaccination in wild carnivores in the United States. Virus Res 2005; 111: 68–76.
76. Sidwa TJ, Wilson PJ, Moore GM, et al. Evaluation of oral rabies vaccination programs for control of rabies epizootics in coyotes and gray foxes: 1995–2003. J Am Vet Med Assoc 2005; 227: 785–792.
77. MacInnes CD, Smith SM, Tinline RR, et al. Elimination of rabies from red foxes in eastern Ontario. J Wildl Dis 2001; 37: 119–132.
78. Rosatte RC, Power MJ, Donovan D, et al. Elimination of arctic variant of rabies in red foxes, metropolitan Toronto. Emerg Infect Dis 2007; 13: 1325–1327.
79. Messenger SL, Smith JS, Rupprecht CE. Emerging epidemiology of bat-associated cryptic cases of rabies in humans in the United States. Clin Infect Dis 2002; 35: 738–747.
80. CDC. Human rabies—California, 2002. MMWR Morb Mortal Wkly Rep 2002; 51: 686–688.
81. CDC. Human rabies—Tennessee, 2002. MMWR Morb Mortal Wkly Rep 2002; 51: 828–829.
82. CDC. Human rabies—Iowa, 2002. MMWR Morb Mortal Wkly Rep 2003; 52: 47–48.
83. CDC. Human death associated with bat rabies—California, 2003. MMWR Morb Mortal Wkly Rep 2004; 53: 33–35.
84. CDC. Recovery of a patient from clinical rabies, Wisconsin, 2004. MMWR Morb Mortal Wkly Rep 2004; 53: 1171–1173.
85. CDC. Human rabies—Mississippi, 2005. MMWR Morb Mortal Wkly Rep 2006; 55: 207–208.
86. CDC. Human rabies—Indiana and California, 2006. MMWR Morb Mortal Wkly Rep 2007; 56: 361–365.
87. CDC. Human rabies—Minnesota, 2007. MMWR Morb Mortal Wkly Rep 2008; 57: 460–462.
88. CDC. Human rabies—Missouri, 2008. MMWR Morb Mortal Wkly Rep 2009; 58: 1207–1209.
89. CDC. Human rabies—Kentucky/Indiana, 2009 (MMWR Morb Mortal Wkly Rep 2010; 59:526). MMWR Morb Mortal Wkly Rep 2010; 59: 393–396.
90. CDC. Human rabies—Virginia, 2009. MMWR Morb Mortal Wkly Rep 2010; 59: 1236–1238.
91. CDC. Presumptive abortive human rabies—Texas, 2009. MMWR Morb Mortal Wkly Rep 2010; 59: 185–190.
92. CDC. Human rabies—Michigan 2009. MMWR Morb Mortal Wkly Rep 2011; 60: 437–440.
93. Greenhall AM. House bat management. US Fish and Wildlife Service, Resource Publication 143. Jamestown, ND: Northern Prairie Wildlife Research Center Online, 1982.
94. Greenhall AM. Frantz SC. Bats. In: Hygnstrom SE, Timm RM, Larson GE, eds. Prevention and Control of Wildlife Damage 1994. Available at: icwdm.org/handbook/mammals/bats.asp. Accessed May 30, 2011.
95. AVMA. Model rabies control ordinance. Available at: www.avma.org/issues/policy/AVMA-Model-Rabies-Ordinance.pdf. Accessed May 30, 2011.
96. Bunn TO. Canine and feline vaccines, past and present. In: Baer GM, ed. The natural history of rabies. 2nd ed. Boca Raton, Fla: CRC Press, 1991; 415–425.
97. Macy DW, Hendrick MJ. The potential role of inflammation in the development of postvaccinal sarcomas in cats. Vet Clin North Am Small Anim Pract 1996; 26: 103–109.
98. Gobar GM, Kass PH. World wide web-based survey of vaccination practices, postvaccinal reactions, and vaccine site-associated sarcomas in cats. J Am Vet Med Assoc 2002; 220: 1477–1482.
99. Kass PH, Spangler WL, Hendrick MJ, et al. Multicenter case-control study of risk factors associated with development of vaccine-associated sarcomas in cats. J Am Vet Med Assoc 2003; 223: 1283–1292.
100. Rupprecht CE, Blass L, Smith K, et al. Human infection due to recombinant vaccinia-rabies glycoprotein virus. N Engl J Med 2001; 345: 582–586.
101. CDC. Human vaccinia infection after contact with a raccoon rabies vaccine bait— Pennsylvania, 2009. MMWR Morb Mortal Wkly Rep 2009; 58: 1204–1207.
Appendix A
Rabies vaccines licensed and marketed in the United States, 2011.
Product name | Produced by |
---|---|
Monovalent (inactivated) | |
RABVAC 1 | Boehringer Ingelheim Vetmedica Inc† |
RABVAC 3 | Boehringer Ingelheim Vetmedica Inc |
License No. 112 | |
RABVAC 3 TF | Boehringer Ingelheim Vetmedica Inc |
License No. 112 | |
CONTINUUM RABIES | Intervet Inc |
License No. 165A | |
EQUI-RAB | Intervet Inc |
License No. 165A | |
PRORAB-1 | Intervet Inc |
License No. 165A | |
IMRAB 1 | Merial Inc |
License No. 298 | |
IMRAB 1 TF | Merial Inc |
License No. 298 | |
IMRAB | Merial Inc |
License No. 298 | |
IMRAB 3 TF | Merial Inc |
License No. 298 | |
IMRAB Large Animal | Merial Inc |
License No. 298 | |
DEFENSOR 1 | Pfizer Inc |
License No. 189 | |
DEFENSOR 3 | Pfizer Inc |
License No. 189 | |
RABDOMUN | Pfizer Inc |
License No. 189 | |
RABDOMUN 1 | Pfizer Inc |
License No. 189 | |
Monovalent (rabies glycoprotein and live canary poxvector) | |
PUREVAX Feline Rabies | Merial Inc |
License No. 298 | |
Combination (inactivated rabies) | |
CONTINUUM DAP-R | Intervet Inc |
License No. 165A | |
CONTINUUM Feline HCP-R | Intervet Inc |
License No. 165A | |
Equine POTOMAVAC + IMRAB | Merial Inc |
License No. 298 | |
Combination (rabies glycoprotein and live canary poxvector) | |
PUREVAX Feline 3/Rabies | Merial Inc |
License No. 298 | |
PUREVAX Feline 4/Rabies | Merial Inc |
License No. 298 | |
Oral (rabies glycoprotein and live vaccinia vector)—restricted to use in state and federal rabies control programs | |
RABORALV-RG | Merial Inc |
License No. 298 |
Minimum age (or older) and revaccinated 1 year later.
Fort Dodge Animal Health was recently acquired by Boehringer Ingelheim Vetmedica Inc.
One month = 28 days.
NA = Not applicable.
Appendix B
Rabies vaccine manufacturer contact information.
Manufacturer | Phone No. | Internet address |
---|---|---|
Boehringer Ingelheim Vetmedica Inc | 800-638-2226 | Not available |
Intervet Inc | 800-441-8272 | www.intervetusa.com |
Merial Inc | 888-637-4251 | us.merial.com |
Pfizer Inc | 800-366-5288 | www.pfizerah.com |
Adverse events should be reported to the vaccine manufacturer and to the USDA APHIS Center for Veterinary Biologics (www.aphis.usda.gov/animal_health/vet_biologics/vb_adverse_event.shtml; 800-752-6255).