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A 7.53-kg (16.57-lb) free-ranging male bobcat ( Lynx rufus ), estimated to be 15 months old, was reported to be injured on Jekyll Island, Ga. Staff from the Jekyll Island Authority-Georgia Sea Turtle Center observed that the animal appeared unable

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in Journal of the American Veterinary Medical Association

History A 6-month-old 5.3-kg castrated male, reportedly indoor-only, pet bobcat ( Lynx rufus ) presented to a veterinary clinic in Enid, Oklahoma for acute onset of vomiting, diarrhea, and lethargy. The owner had 2 pet raccoons ( Procyon lotor

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in Journal of the American Veterinary Medical Association

are referred to as piroplasms. 3 Felids that survive the schizogenous phase of infection generally remain healthy despite persistence of piroplasms for months to years. 4–6 Bobcats ( Lynx rufus ), the primary reservoir hosts, are believed to only

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in Journal of the American Veterinary Medical Association

Summary

Cytauxzoonosis is a rapidly and highly fatal disease in cats that is caused by the protozoan Cytauxzoon felis, which may be transmitted by Ixodid ticks (Dermacentor variabilis) from parasitemic bobcats (Lynx rufus). During an 8-year period, cytauxzoonosis was diagnosed in 8 cats, 7 cats within 14 months. Risk factors for these cats were warm weather, access to a wooded environment, and exposure to ticks. The most consistent clinical signs were acute lethargy, anorexia, decreased response to external stimuli (depression), icterus, dehydration, and capillary refill time > 2 seconds. Pertinent clinicopathologic findings were normocytic normochromic anemia, leukopenia, and thrombocytopenia; high serum concentrations of total bilirubin and glucose, low serum concentrations of albumin and potassium, high serum alanine transaminase activity; and, bilirubinuria. Confirmation of cytauxzoonosis was made by cytologic or histologic identification of the C felis organism. Splenic, lymph node, and bone marrow aspirates can provide an antemortem diagnosis when the number of parasitized erythrocytes is low on blood smears. Supportive treatment of 6 cats was temporarily palliative in some, but all 8 cats either died (3) or were euthanatized (5) when they became moribund. Survival time from observed onset of illness to death was < 5 days. Necropsy of 4 cats revealed predominately pulmonary involvement with venous congestion. Histologic examination revealed venous occlusion by parasitized mononuclear phagocytes in all tissue specimens, but only minimal inflammatory infiltrates.

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in Journal of the American Veterinary Medical Association

transmission among wild, domestic cats Scientists at Colorado State University recently received a $2.3 million grant from the National Science Foundation to study how habitat fragmentation influences transmission of diseases among bobcats, pumas, and

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in American Journal of Veterinary Research

        % Change 2.83 −4.71 3.52 10.12 −9.30 −33.71 −19.35 11.11 −80.00 −4.00 9.89 9.74 −9.59 −7.04 12.50 −66.67       * Other domestic includes a 1 llama. † Other wild includes b 1 bobcat, 1 coyote; c 1 bobcat

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in Journal of the American Veterinary Medical Association

development expands into wildlands as follows: bobcats ( Lynx rufus ), mountain lions ( Puma concolor ), gray foxes ( Urocyon cinereoargenteus ), and red foxes ( Vulpes vulpes ). Carcasses were donated by USDA Wildlife Services and the California Department

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in Journal of the American Veterinary Medical Association

domestic includes: a 1 ferret. tOther wild includes: b 1 wolf; c 1 coyote; d 8 bobcats, 2 coyotes, 1 ringtail; e 1 cougar; f 1 deer; g 2 bobcats, 1 otter; h 6 bobcats; i 1 bobcat, 1 coyote; j 1 opossum; k 2 bobcats, 1 coyote, 1 opossum

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in Journal of the American Veterinary Medical Association

primarily in March through September, with peak incidences in spring and fall. 2,3,6 The geographic distribution of C felis typically follows the natural range of the North American bobcat ( Lynx rufus ), the presumed natural reservoir for this protozoan

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in Journal of the American Veterinary Medical Association

      % Change −8.05 −3.56 −8.39 1.00 −4.05 −14.81 −9.76 −25.00 0.00 −3.48 −12.00 −9.67 −14.88 −9.09 −13.16 −50.00       * Other domestic includes a 1 pig. † Other wild includes b 2 coyotes; c 4 bobcats, 1

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in Journal of the American Veterinary Medical Association