Search Results

You are looking at 1 - 8 of 8 items for :

  • "veterinarians" x
  • Microbiology x
  • Refine by Access: All Content x
Clear All

SUMMARY

Pseudorabies virus (prv), an alpha-herpesvirus, causes substantial economic losses in the swine industry and is currently the focus of eradication and control programs. Some of these programs rely on the ability of veterinarians to differentiate animals exposed to virulent strains of prv from animals exposed to avirulent vaccine strains of prv on the basis of a serologic response to nonessential glycoproteins that are deleted in some vaccine strains of prv. Genetic recombination resulting in the creation of virulent strains of prv with the same negative immunologic markers as vaccine strains could disrupt these programs. Two strains of prv were coinoculated either into tissue culture or into sheep to facilitate recombination. Progeny viruses were selected to detect a specific recombinant phenotype. We were able to detect genetic recombination between vaccine strains of prv following in vitro or in vivo coinoculation of 2 strains of prv. The selected recombinants had marker-deleted phenotypes in strains with restored virulence genes. Increased virulence was observed in sheep after coinoculation of 2 avirulent vaccine strains of prv.

Free access
in American Journal of Veterinary Research

originated, any ill pigs were removed from the barn and treated; those that recovered were harvested at another time. Conventionally raised pigs (ie, those raised on farms in which antimicrobials were used for any veterinarian-directed purpose) were selected

Full access
in American Journal of Veterinary Research

. Materials and Methods Study population —A cross-sectional study of a convenience sample of 50 Ohio dairy herds was conducted. Nine veterinarians in private practice were contacted from across the state of Ohio for help in the recruitment of prospective

Full access
in American Journal of Veterinary Research

basis of results of PFGE analysis, it is quite unlikely that the cats contracted their MRSA strains from a common veterinary nosocomial source because none of the cats were referred to our facility by the same veterinarian and most were first

Full access
in American Journal of Veterinary Research

Urinary tract infection is a common disorder of dogs, with previous estimates suggesting that 14% of dogs will have a UTI at some time during their life. 1 The disease more commonly affects female dogs 2 and is a common reason for veterinarians

Full access
in American Journal of Veterinary Research

a during the nonlactating period. Submitted milk samples were obtained aseptically by a veterinarian or an animal health technician during monthly veterinary herd health visits or from cows with CM. Most samples were cultured on the day of

Full access
in American Journal of Veterinary Research

were recognized. Because the CAPS device used in the present study was compact and portable, it may facilitate onsite (ie, on a farm) sterilization of surgical instruments and equipment for veterinarians in ambulatory practice. The availability of a

Full access
in American Journal of Veterinary Research

β-lactams and fluoroquinolone agents, among ExPEC. Currently, in Japan, there are few legal regulations regarding antimicrobial use in companion animals, in contrast to the laws associated with food-producing animals. It is hoped that veterinarians

Full access
in American Journal of Veterinary Research