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some leptospira agglutinins detected in domestic animals in british columbia.during a period of six years 7,555 bovine sera, 421 canine sera, 251 porcine sera and 135 equine sera were tested for agglutinins to leptospira interrogans serotypes canicola, grippotyphosa, hardjo, icterohemorrhagiae, pomona and sejroe. the bovine sera reacted predominantly with hardjo and/or sejroe at a rate of 15% compared to 3.5% with pomona. breeding or abortion problems were associated with pomona but not with sejroe/hardjo agglutinins. the canine sera reacted to canicola (9.9%y and ictero ...19761000389
major antigenic groups of rabies virus in canada determined by anti-nucleocapsid monoclonal antibodies.a total of 123 rabies virus isolates from various geographical areas in canada were characterized by a panel of 43 anti-nucleocapsid monoclonal antibodies. four major antigenic groups are found in terrestrial mammals: "canadian arctic" from ontario, quebec and the northwest territories; "south-eastern georgian bay" from ontario; "south mid-central skunk" from alberta, saskatchewan and manitoba; and "brook's, alberta skunk" from a restricted area in alberta. bat isolates can be divided into 4 maj ...19863769442
lead poisoning in humans remote? 19725014221
arboviruses west and north. 19725034693
arbovirus infections in man in british columbia.during the summer of 1971, the first laboratory-proved cases of acute encephalitis in man due to any of the known arboviruses occurred in the south-central region of british columbia. five human cases of encephalitis with two deaths were diagnosed; three of these patients, including one of the fatalities, were proven in the laboratory to have contracted western equine encephalitis.during 1968 and 1969, a human serum survey undertaken in approximately 2000 life-long residents of the province disc ...19725034698
lead poisoning in horses. an environmental health hazard. 19715166257
hemocytic rickettsia-like organisms in ticks: serologic reactivity with antisera to ehrlichiae and detection of dna of agent of human granulocytic ehrlichiosis by pcr.ixodid ticks were collected from connecticut, massachusetts, missouri, pennsylvania, rhode island, and british columbia (canada) during 1991 to 1994 to determine the prevalence of infection with hemocytic (blood cell), rickettsia-like organisms. hemolymph obtained from these ticks was analyzed by direct and indirect fluorescent antibody (fa) staining methods with dog, horse, or human sera containing antibodies to ehrlichia canis, ehrlichia equi, or rickettsia rickettsii. of the 693 nymphal and a ...19958567911
immunotherapy trial for horses in british columbia with culicoides (diptera:ceratopogonidae) hypersensitivity.immunotherapy was used to treat horses in british columbia for culicoides hypersensitivity. this is a severe, chronic, recurrent allergic disease of horses that results in severe irritation, large lesions, hair loss and secondary infection in the ventral midline, mane, and proximal region of the tail. a crude culicoides extract was injected subcutaneously, in increasing doses, into 10 horses that were affected severely by the disease. weekly doses reduced the clinical signs in 9 of the 10 horses ...19968667395
a case of ehrlichia equi in an adult horse in british columbia. 19968681291
prevalence of methicillin-resistant staphylococcus aureus colonization in horses in saskatchewan, alberta, and british columbia.this study estimated the prevalence of methicillin resistant staphylococcus aureus (mrsa) in nasal swabs of 458 horses in western canada. the rate of colonization was 1.3% +/- 5.84% [95% confidence interval (ci)], a rate similar to those reported elsewhere. colonization tended to be transient and seemed unrelated to stress or administration of antimicrobials. five of the 6 isolates were canadian epidemic mrsa-5, a human clone that appears to predominate in horses in north america. the other isol ...200920119542
west nile virus range expansion into british columbia.in 2009, an expansion of west nile virus (wnv) into the canadian province of british columbia was detected. two locally acquired cases of infection in humans and 3 cases of infection in horses were detected by elisa and plaque-reduction neutralization tests. ten positive mosquito pools were detected by reverse transcription pcr. most wnv activity in british columbia in 2009 occurred in the hot and dry southern okanagan valley. virus establishment and amplification in this region was likely facil ...201020678319
surveillance for cryptococcus gattii in horses of vancouver island, british columbia, canada.in the last decade cryptococcus gattii has emerged as an important human and animal pathogen in southwestern british columbia (bc), canada. when the disease initially emerged it was identified in humans and multiple animal species on the east coast of vancouver island. from fall 2003 until summer 2004, active surveillance was initiated to look for horses exposed to or infected with the organism by performing nasal cultures and serum antigen testing in horses residing within 10 km of known areas ...201121375433
dna content, karyotypes, and chromosomal location of 18s-5.8s-28s ribosomal loci in some species of bivalve molluscs from the pacific canadian coast.the dna content of 10 species of bivalve molluscs from british columbia coast was determined by image analysis, and the karyotypes of the horse clam tressus capax, the bent-nose macoma macoma nasuta, and the nuttall's mahogany clam nuttallia nuttallii are described here for the first time. we also have analyzed the location of rdna loci using a 28s-5.8s-18s probe in four of these species: mytilus californianus, m. trossulus, macoma nasuta and n. nuttallii. results obtained report new data about ...200011195339
temperature and the persistence of viruses in culicoides spp. during adverse conditions.the average daily maximum temperature for the coldest month during the winters of 1977-1978 and 1978-1979, when bluetongue (bt) virus overwintered in a cycle between culicoides spp. and cattle in western turkey (aydin and izmir provinces), was found to be 12.5 degrees c. this temperature agreed with the lowest temperatures found for culicoides activity and for flight over long distances. overwintering of bt virus in western turkey and lesbos (1979-1980), african horse sickness (ahs) virus in spa ...19938219328
culicoides obsoletus (diptera: ceratopogonidae) as a causal agent of culicoides hypersensitivity (sweet itch) in british columbia.six horses severely affected by a seasonal dermatitis similar in both histopathology and epidemiology to culicoides hypersensitivity (ch) and six unaffected or normal horses were inoculated intradermally with an extract of culicoides obsoletus (meigen), the most common culicoides in southwestern british columbia. affected horses developed large welts within 20 min after injection, representing an immediate (type i) reaction; welts were largest 24 h or more after challenge, indicating in addition ...19911941937
fusariotoxicosis from barley in british columbia. i. natural occurrence and diagnosis.clinical sickness was observed in domestic ducks, geese, horses and swine during october 1973. all species showed upper alimentary distress with mortalities occurring in the geese. barley derived from a common source had been fed. examination of the barley revealed invasion by fusarium spp and detection of a high level of dermatitic fusariotoxins.19761000372
ethnoveterinary medicines used for horses in trinidad and in british columbia, canada.this paper investigates the commonalities in ethnoveterinary medicine used for horses between trinidad (west indies) and british columbia (canada). these research areas are part of a common market in pharmaceuticals and are both involved in the north american racing circuit. there has been very little research conducted on medicinal plants used for horses although their use is widespread. the data on ethnoveterinary medicines used for horses was obtained through key informant interviews with hor ...200616893454
hypersensitivity of horses in british columbia to extracts of native and exotic species of culicoides (diptera: ceratopogonidae).six horses from british columbia severely affected by culicoides hypersensitivity, a seasonal dermatitis caused by the bites of culicoides spp., were inoculated intradermally with extracts of six species or forms of culicoides from british columbia, united states, and israel. two native and four exotic species were thought to cause the disease in their own geographical area. the horses developed large welts within 20 min after injection of any of the six extracts, indicating an immediate (type i ...19938360890
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