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prevalence of toxoplasma gondii infection in horses. 1979448624
an outbreak of equine neonatal salmonellosis.an outbreak of salmonellosis in foals occurred on a large thoroughbred farm in california. only foals less than 8 days of age exhibited clinical signs, which included depression, anorexia, and diarrhea. three foals died from septicemia. the agent responsible was salmonella ohio, which is rarely involved in salmonellosis in horses. during the course of the outbreak, s. ohio was isolated from 27 of 97 mares (27.8%) and 34 of 97 foals (35.1%). mares were the presumed source of infection for foals. ...19911911993
rabies surveillance in the united states during 1989.in 1989, 4,808 cases of rabies in animals other than human beings were reported to the centers for disease control, 1.8% more (4,724 to 4,808) than in 1988. eighty-eight percent (4,224/4,808) of those affected were wild animals and 12% (584/4,808) were domestic animals. cases were reported from 49 states, the district of columbia, and puerto rico; hawaii remained rabies-free. skunks (1,657) continued to be the most commonly reported rabid wild animal. for the second consecutive year, more cats ( ...19902276949
epidemiology of equine protozoal myeloencephalitis in north america based on histologically confirmed cases. a report.following a workshop on equine protozoal myeloencephalitis (epm) convened at the veterinary medical forum of the american college of veterinary internal medicine in 1988, this survey of epm in north america was developed. it is based upon 364 histologically confirmed case records from california, florida, illinois, kentucky, new york, ohio, oklahoma, ontario, pennsylvania, and texas up to 1988. the highest rate of infection was found in young thoroughbred, standardbred, and quarter horses. diffe ...19902342022
equine ehrlichial colitis (potomac horse fever): recognition of the disease in pennsylvania, new jersey, new york, ohio, idaho, and connecticut.equine ehrlichial colitis (potomac horse fever), a newly identified colitis of the horse, was first recognized in maryland. in this report, we document occurrence of the disease in pennsylvania, new jersey, new york, ohio, idaho, and connecticut. enzootic areas were recognized by a characteristic pattern. frequently there was a seasonal pattern and high prevalence of sporadic colitis in unstressed horses. the attack rate per farm generally was low. horses on pasture, as well as those stabled, we ...19863744978
arbovirus studies in the ohio-mississippi basin, 1964-1967. v. trivittatus and western equine encephalomyelitis viruses. 19695817893
epidemiology of equine cryptosporidium and giardia infections.prevalence and infection patterns of cryptosporidium and giardia infections in horses were studied by a direct immunofluorescence staining method. faecal examinations of 222 horses of different age groups revealed cryptosporidium infection rates of 15-31% in 66 foals surveyed in central ohio, southern ohio and central kentucky, usa. only 1 of 39 weanlings, 0 of 46 yearlings, and 0 of 71 mares were positive. giardia infection was found in all age groups, although the infection rates for foals wer ...19948143656
abundance and temporal distribution of ornithonyssus sylviarum canestrini and fanzago (acarina: mesostigmata) in gray catbird (dumatella carolinensis) nests.the northern fowl mite, ornithonyssus sylviarum canestrini and fanzago, is a common ectoparasite of wild birds. despite its ability to transmit eastern equine encephalitis (eee) virus under laboratory conditions and potential for involvement in the natural eee virus cycle, we know little about its abundance or temporal distribution in nature. from june to august 2000, we studied the abundance of o. sylviarum in the nests of gray catbirds (dumatella carolinensis), a reservoir host for eee virus, ...200415266741
seroprevalence of eastern equine encephalomyelitis virus in birds and larval survey of culiseta melanura coquillett during an interepizootic period in central ohio.from june through august in 1999 and 2000, we conducted an avian serosurvey for eastern equine encephalomyelitis (eee) virus at killbuck marsh wildlife area (kmwa), a focus of infection in central ohio. we also monitored abundance of the suspected enzootic vector, culiseta melanura coquillett, in brown's lake bog, an adjacent wetland. of the 363 birds of 30 species sampled in 1999, three gray catbirds (dumetella carolinensis) were positive for antibodies to eee virus, representing 1.2% of the av ...200415266743
west nile virus activity--united states, july 21-27, 2004.during july 21-27, a total of 83 cases of human west nile virus (wnv) illness were reported from 13 states (alabama, arizona, arkansas, california, colorado, florida, illinois, iowa, missouri, new mexico, ohio, pennsylvania, and south dakota).200415282450
west nile virus activity--united states, august 11-17, 2004.during august 11-17, a total of 194 cases of human west nile virus (wnv) illness were reported from 17 states (alabama, arizona, california, colorado, florida, illinois, louisiana, maryland, minnesota, mississippi, missouri, new mexico, ohio, south dakota, texas, utah, and virginia).200415318160
west nile virus activity--united states, september 22-28, 2004.during september 22-28, a total of 180 cases of human west nile virus (wnv) illness were reported in the district of columbia (dc) and 24 states (alabama, arizona, california, georgia, illinois, iowa, kansas, kentucky, louisiana, maryland, michigan, minnesota, mississippi, missouri, montana, nebraska, nevada, new mexico, ohio, pennsylvania, texas, utah, wisconsin, and wyoming).200415457147
west nile virus activity--united states, september 29-october 5, 2004.during september 29-october 5, a total of 81 cases of human west nile virus (wnv) illness were reported from 18 states (alabama, arizona, arkansas, california, florida, georgia, illinois, iowa, kansas, kentucky, minnesota, missouri, ohio, oklahoma, pennsylvania, south dakota, texas, and virginia).200415470326
west nile virus activity--united states, october 6-12, 2004.during october 6-12, a total of 86 cases of human west nile virus (wnv) illness were reported from 18 states (arizona, florida, illinois, kansas, louisiana, michigan, minnesota, missouri, nevada, new jersey, new mexico, north dakota, ohio, oklahoma, pennsylvania, tennessee, texas, and utah).200415483530
west nile virus activity--united states, october 20-26, 2004.during october 20-26, a total of 80 cases of human west nile virus (wnv) illness were reported from 16 states (arizona, california, florida, iowa, kentucky, louisiana, michigan, mississippi, missouri, montana, nebraska, new york, ohio, south dakota, texas, and utah).200415514584
test of recrudescence hypothesis for overwintering of eastern equine encephalomyelitis virus in gray catbirds.eastern equine encephalitis virus (eeev; family togaviridae, genus alphavirus) epizootics are infrequent, but they can lead to high mortality in infected horses and humans. despite the importance of eeev to human and animal health, little is known about how the virus overwinters and reinitiates transmission each spring, particularly in temperate regions where infected adult mosquitoes are unlikely to survive through the winter. one hypothesis to explain the mechanism by which this virus persists ...201121845951
low prevalence of escherichia coli o157:h7 in horses in ohio, usa.manure from draft animals deposited in fields during vegetable and fruit production may serve as a potential source of preharvest pathogen contamination of foods. to better quantify this risk, we determined the prevalence of escherichia coli o157:h7 in horses. between june and september 2009, freshly voided fecal samples were collected from horses stabled on 242 separate premises in ohio, usa. overall, the prevalence of e. coli o157:h7 was 1 of 242 (0.4% prevalence, 95% confidence interval [ci] ...201021219723
environmental salmonella surveillance in the ohio state university veterinary teaching hospital.sampling was conducted at the ohio state university's veterinary teaching hospital (osu-vth) to evaluate the extent of environmental contamination with salmonella enterica, at 1-week intervals beginning march 19, 2007, through may 21, 2007. environmental samples were collected from various surface and floor locations in the equine and food animal areas using sterile moistened gauze sponges. all samples were processed using standard bacteriologic culture to identify the presence of salmonella spp ...200919272003
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
clinical features and outcomes of phacoemulsification in 39 horses: a retrospective study (1993-2003).to identify visual outcome and postoperative complications following phacoemulsification of equine cataracts.200616939466
conflict of interest: the trojan horse of specialty hospital legislation. 200315815130
use of a non-traditional university ambulatory practice to teach large animal medicine.while many other veterinary schools have moved away from a traditional university-based ambulatory practice, the ohio state university's large animal practice has continued to provide a cost-effective and valuable method of preparing students for today's careers in veterinary medicine. the practice provides a full array of services to production, equine, and camelid clients, including herd health, individual animal medicine and surgery, and emergency services. acquiring established practices fro ...200415551233
west nile virus activity--united states, october 27-november 2, 2004.during october 27-november 2, a total of 10 cases of human west nile virus (wnv) illness were reported from eight states (arizona, georgia, iowa, michigan, new mexico, ohio, oklahoma, and pennsylvania).200415525902
pediatric farm-related injuries: a series of 96 hospitalized patients.ninety-six children were admitted during a 9-year period to a pediatric level 1 trauma center for treatment of farm-related injuries. the age range was from 6 weeks to 17 years (median, 7.5 years; mean, 7.6 years; standard deviation, 4.4). thirty-nine patients (40.6%) had an animal-related injury, including 36 children (37.5%) who had an injury associated with a horse. amish children had an increased risk of horse-related injury when compared with non-amish children (p=0.04; rr=2.09, 95% ci: 1.1 ...200415118776
amish buggy injuries in the 21st century: a retrospective review from a rural level ii trauma center.horse-drawn buggies are rarely used in modern society except among certain religious groups. northeastern indiana has one of the largest populations of one such group: the amish. although there are papers written about the incidence of buggy crashes, no paper has specifically addressed the specific types of injuries sustained when buggies collide with motorized vehicles. this paper reviews the types of injuries sustained when such events occur.200415055846
eastern tent caterpillars (malacosoma americanum) cause mare reproductive loss syndrome.a new equine abortigenic disease, mare reproductive loss syndrome (mrls), was recognized and significantly impacted the ohio valley in the springs of 2001 and 2002. mrls caused approximately 330 million us dollars in losses in 2001. an epidemiological investigation of mrls associated occurrence of the disease with exposure to eastern tent caterpillars (m. americanum). this work investigates the epidemiological association between m. americanum and mrls to determine if this association was correl ...200415019520
epidemiology of sarcocystis neurona infections in domestic cats (felis domesticus) and its association with equine protozoal myeloencephalitis (epm) case farms and feral cats from a mobile spay and neuter clinic.equine protozoal myeloencephalitis (epm) is a serious neurologic disease in the horse most commonly caused by sarcocystis neurona. the domestic cat (felis domesticus) is an intermediate host for s. neurona. in the present study, nine farms, known to have prior clinically diagnosed cases of epm and a resident cat population were identified and sampled accordingly. in addition to the farm cats sampled, samples were also collected from a mobile spay and neuter clinic. overall, serum samples were co ...200314637026
west nile virus activity--united states, september 12-18, 2002, and ohio, january 1-september 12, 2002.this report summarizes west nile virus (wnv) surveillance data reported to cdc through arbonet and by states and other jurisdictions as of 7:30 a.m. mountain daylight time, september 18, 2002.200212353746
actinobacillus sp. bacteremia in foals: clinical signs and prognosis.medical records of 101 blood culture-confirmed bacteremic foals were reviewed to determine whether foals with actinobacillus sp. bacteremia are affected at an earlier age, have more severe signs of disease, and have a worse prognosis than do foals with bacteremia of other causes. thirty percent (30/101) of bacteremic foals had actinobacillus sp. cultured, and these were 2 times more likely to die (crude odds ratio [or(cr)] 0.8, 4; p = .14), with a survival rate of 43% (13/30) compared to the ove ...200212141310
suspected neonatal isoerythrolysis in two baird's tapirs (tapirus bairdii).two baird's tapir (tapirus bairdii) calves born at the columbus zoo from the same sire and dam developed hemolytic anemia that was consistent in history and clinical signs with neonatal isoerythrolysis (ni). one calf developed severe, fatal hemolytic anemia after being fed maternal colostrum, and the other developed moderate hemolytic anemia after being fed equine colostrum. no cross-reactivity was demonstrated between sire and dam blood samples, and both tapirs possessed serum antibodies reacti ...19979365941
seroprevalence of antibodies to sarcocystis neurona in horses residing in ohio.to determine the seroprevalence of serum antibodies to sarcocystis neurona in horses residing in ohio.19979040839
population size, parity structure, and wing length of coquillettidia perturbans in an ohio focus of eastern equine encephalitis.adult female density, parity status, and wing length were determined weekly for a population of coquillettidia perturbans in an area enzootic for eastern equine encephalitis virus in central ohio. samples were collected in co2-baited cdc miniature light traps from the first week in june through the 2nd week of september 1992. population density indicated a single emergence peak during the 2nd week in july. however, parity rates showed 2 peaks, occurring in the first week of august (70.9% parous) ...19968723260
eastern equine encephalitis virus in ohio during 1991.during august and september of 1991, an epizootic of eastern equine encephalitis (eee) virus in horses occurred in wayne and holmes countries, oh. this was the first recorded epizootic of eee virus in the state. twelve horses were confirmed positive for eee virus through virus isolation or seroconversion, and seven additional horses with compatible symptoms were in close spatial and temporal proximity to the confirmed cases and were presumed to have died from eee virus. the outbreak was centered ...19938094461
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
an epidemiological investigation of farms with potomac horse fever (equine monocytic ehrlichiosis). 19883232630
cruciate and collateral ligament failure in the equine stifle: seven cases (1975-1985).medical records of 7 adult horses with single or multiple ligament failure of the femorotibial ligaments were reviewed to evaluate signalment, history, diagnostic and treatment methods, outcome, and long-term follow-up information. acute onset of lameness was recorded for most of the horses. horses with multiple ligament injury had more severe clinical signs than did horses with single ligament injury. horses with single ligament injury generally required manipulative tests to localize the lamen ...19883170336
a study of trauma in an amish community.an analysis of 272 amish admissions to a community hospital over a 3-year period revealed 60 to be trauma related. the majority of the accidents were unique to the amish community, with 26.7% horse and buggy related. falls accounted for 20%, "hay hole" falls 8.3%, power saw injuries 8.3%, and horse drawn farm equipment 6.7%. the amish are an exceptional group whose religious beliefs disallow the use of many modern conveniences such as automobiles and electricity. as with the general population, ...19902381009
serosurvey of horses with evidence of equine monocytic ehrlichiosis.in august 1986, an extensive serosurvey for prevalence of igg and igm antibodies against ehrlichia risticii, the causative agent of equine monocytic ehrlichiosis (eme), was performed at 2 ohio racetracks, river downs (rd) and beulah park (bp). of 840 horses at rd and 574 at bp, 13 and 20%, respectively, were igg antibody-positive (by indirect fluorescent antibody test results), with antibody titer ranging from 1:20 to 1:10,240. the titer observed at highest frequency at both racetracks was 1:80. ...19902266048
from horse and buggy practice to world-renowned medical center. history of the cleveland clinic foundation. 19846371750
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