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trajectory analysis of winds and eastern equine encephalitis in usa, 1980-5.backward trajectories of winds were determined to identify possible sources of eastern equine encephalitis virus associated with isolation of virus from mosquitoes or birds or outbreaks in horses between 1980 and 1985 in maryland, new jersey, new york and michigan, usa. the results of the trajectory analyses suggested that eastern equine encephalitis virus could have been carried by infected mosquitoes on surface winds at temperatures 13 degrees c or higher from north carolina north-eastwards al ...19901969804
distribution of equine infectious anemia in equids in southeastern united states.state veterinarians in 11 southeastern states completed a questionnaire designed to determine the proportion of equids in the region that were seropositive for equine infectious anemia (eia). cases of eia were diagnosed in each of the states surveyed. distinct geographic clusters of cases were apparent in tennessee and kentucky adjacent to the mississippi river, in the piedmont of north carolina at the virginia border, in north central georgia, and throughout the florida peninsula. it is suggest ...19902173692
eastern equine encephalitis in quebec and connecticut, 1972: introduction by infected mosquitoes on the wind?in 1972 there were outbreaks of eastern equine encephalitis in the eastern townships, quebec, canada and in connecticut, usa. climatic data including northern hemisphere synoptic charts were examined. the findings indicate that the virus could have been brought to lac brome by infected mosquitoes carried on surface winds from meriden, connecticut, on the night of august 22-23, 1972. the distance of 400 km would have been covered in 14-16 h at a speed of 25-30 km h-1 and at a temperature of 15 de ...19892563337
prevalence of equine onchocerciasis in southeastern and midwestern united states.of 664 horses reported to have originated in southeastern and midwestern united states, 341 (51.4%) were positive for onchocerca cervicalis cutaneous microfilariasis. the highest prevalence of 68.8% was recorded for horses from virginia. horses with the highest concentrations of microfilariae (as high as 19,770 microfilariae/mg in 1 horse) were from the southeast (georgia, florida, tennessee, and alabama). for horses from south carolina, the prevalence of infection was 57.1%; from the midwest (k ...19854008301
spiroplasmas in the tabanidae.spiroplasmas were observed in seven species of the family tabanidae (horse flies and deer flies). this is the fifth family of the order diptera now known to harbor spiroplasmas. noncultivable spiroplasmas were seen in the hemolymph of three species of the genus tabanus, and cultivable forms were isolated from the guts of six species in three genera. isolates from t. calens and t. sulcifrons were serologically similar and closely related to a spiroplasma in the lampyrid beetle, ellychnia corrusca ...19846511308
high mortality of domestic turkeys associated with highlands j virus and eastern equine encephalitis virus infections.high mortality occurred in two flocks of commercial turkey hens placed in southern north carolina in fall 1991. daily mortality peaked at 3.19% in flock 1 and 3.79% in flock 2. clinical signs included restlessness, somnolence, vocalization, and acute death. gross lesions included atrophy of the bursa of fabricius, thymus, and spleen, and watery intestinal contents. microscopic changes included moderate to marked lymphocyte necrosis and depletion in the bursa, thymus, and spleen, widely scattered ...19938395810
leukoencephalomalacia.leukoencephalomalacia in horses is caused by fumonisins. these mycotoxins are produced by fusarium spp. that contaminate corn and corn byproducts while in the field. the most common clinical presentation is a multifocal neurologic disease that affects multiple horses in a herd. although the majority of affected horses die, treatment directed at decreasing inflammation and edema in the cns may result in recovery in some animals.19979106340
ticks and antibodies to borrelia burgdorferi from mammals at cape hatteras, nc and assateague island, md and va.results of a survey for ixodid ticks and/or serum antibodies to borrelia burgdorferi from 14 species of small to large mammals from eastern coastal areas of the united states are presented. most samples were obtained from july 1987 through june 1989 (excluding december-march) at 3 locales: assateague is. national seashore, worcester co., md., and accomack co., va. (approximately 38 degrees 05' n 75 degrees 10' w), and cape hatteras national seashore, dare co., nc (approximately 35 degrees 30' n ...199910534951
update: west nile virus activity--eastern united states, 2000.data reported to cdc through the west nile virus (wnv) surveillance system have shown an increase in the geographic range of wnv activity in 2000 compared with 1999, the first year that wnv was reported in the western hemisphere. in response to this occurrence of wnv, 17 states along the atlantic and gulf coasts, new york city, and the district of columbia conducted wnv surveillance, which included monitoring mosquitoes, sentinel chicken flocks, wild birds, and potentially susceptible mammals (e ...200011105767
copperhead envenomations in the carolinas.although the copperhead (akistrodon contortrix) is responsible for most crotaline envenomations in the carolinas, manifestations and treatment are poorly characterized.200312645965
management of drug-resistant cyathostominosis on a breeding farm in central north carolina.possible anthelmintic resistance on a breeding farm where a rapid rotation anthelmintic programme had been implemented for 9 years was investigated. cyathostomins resistant to fenbendazole and pyrantel were documented by faecal worm egg count reduction test (fwecrt).200312755426
superficial, nonhealing corneal ulcers in horses: 23 cases (1989-2003).to characterize superficial, nonhealing corneal ulcers in the horse and to assess the affect of age, breed, sex, inciting cause of the ulcer, and treatment on healing time of these ulcers.200314641825
west nile virus activity--united states, august 18-24, 2004.during august 18-24, a total of 154 cases of human west nile virus (wnv) illness were reported from 18 states (alabama, arizona, california, colorado, connecticut, florida, georgia, illinois, kentucky, minnesota, mississippi, missouri, nevada, new mexico, north carolina, south dakota, tennessee, and wisconsin).200415329654
west nile virus activity--united states, october 13-19, 2004.during october 13-19, a total of 200 cases of human west nile virus (wnv) illness were reported from 20 states (arizona, arkansas, california, colorado, illinois, indiana, iowa, kansas, maryland, michigan, mississippi, missouri, nevada, new mexico, north carolina, oklahoma, pennsylvania, south dakota, wisconsin, and wyoming).200415499683
immune-mediated keratitis in horses: 19 cases (1998-2004).the purpose of this study is to describe clinical and histologic findings, treatment, and outcome of horses with suspected immune-mediated keratitis (immk).200516008702
horse-related injuries and deaths in north carolina, 1995-1999. 200616752724
retinal detachment in horses: 40 cases (1998-2005).to determine clinical features, ophthalmic examination findings, etiology, treatment, and outcome of horses diagnosed with retinal detachment (rd).200717971000
demographic characteristics of horses donated to the north carolina state university equine health center, 1996-2008.to determine demographic characteristics of horses donated to the north carolina state university equine health center (ehc) between 1996 and 2008.201020550449
thrombocytosis in 24 horses (1989-1994).the records of horses presented to the veterinary teaching hospital of north carolina state university college of veterinary medicine between january 1, 1989 and april 30, 1994 were evaluated to determine risk factors associated with thrombocytosis. of the 2,346 horses for which a cbc was performed, 24 (1.0%) had a platelet count > 400,000/microl. demographic, diagnostic, physical examination, and clinicopathologic variables from these cases were compared with a reference population consisting o ...19979132480
leukoencephalomalacia in a white-tailed deer from north carolina.leukoencephalomalacia similar to equine leukoencephalomalacia occurred in a white-tailed deer (odocoileus virginianus) from north carolina. the deer was recumbent and stuporous when presented for examination. it was believed that the disease resulted from ingestion of moldy field corn, infected with fusarium moniliforme.19892761012
what really causes colic in horses? epidemiology's role in elucidating the ultimate multi-factorial disease. 19979413710
a microsatellite analysis of five colonial spanish horse populations of the southeastern united states.the domestic horse (equus caballus) was re-introduced to the americas by spanish explorers. although horses from other parts of europe were subsequently introduced, some new world populations maintain characteristics ascribed to their spanish heritage. the southeastern united states has a history of spanish invasion and settlement, and this influence on local feral horse populations includes two feral-recaptured breeds: the florida cracker and the marsh tacky, both of which are classified as col ...201222221025
the hen's egg versus the horse's brain: how equine encephalomyelitis vaccine established the dorothy and joseph beard foundation. 19863511390
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