| antibodies to borrelia sp. in wild foxes and coyotes from wisconsin and minnesota. | serum samples from 93 red foxes (vulpes vulpes) and nine gray foxes (urocyon cinereoargenteus) trapped in wisconsin and 23 coyotes (canis latrans) trapped in wisconsin and minnesota were tested for antibodies to borrelia sp. with an indirect fluorescent antibody test which used borrelia burgdorferi as the whole-cell antigen. seven red foxes (8%) and two coyotes (9%) had antibody titers greater than or equal to 1:64. all the positive samples were from areas known to be endemic for human lyme dise ... | 1989 | 2644451 |
| prevalence of selected pathogenic microbial agents in the red fox (vulpes fulva) and gray fox (urocyon cinereoargenteus) of southwestern wisconsin. | free-ranging red foxes (vulpes fulva) and gray foxes (urocyon cinereoargenteus) were trapped in southwestern wisconsin. fox sera were tested to determine the prevalence of antibody for five different leptospira interrogans serovars, canine distemper virus (cdv), infectious canine hepatitis virus (ichv), and franciscella tularensis infections. grippotyphosa was the most prevalent leptospiral serovar antibody observed. twenty-five of 53 (47%) red foxes and 11 of 36 (31%) gray foxes had specific an ... | 1981 | 6265659 |
| natural la crosse virus infection in the red fox (vulpes fulva), gray fox (urocyon cinereoargenteus), raccoon (procyon lotor), and opossum (didelphis virginiana). | natural infection of sentinel red foxes (vulpes fulva) and free-ranging red foxes, gray foxes (urocyon cinereoargenteus) and raccoons (procyon lotor) with la crosse (lac) virus was demonstrated. one isolate of lac virus was obtained from a sentinel red fox in an enzootic area. the viremia titer of the lac virus-infected red fox was above the threshold of infection for aedes triseriatus mosquitoes. antibody responses were measured by the microneutralization test employing four california group vi ... | 1981 | 7258486 |