Publications

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serological incidence of avian reovirus infection in broiler-breeders and progeny in nova scotia.the plaque neutralization test and the agar gel precipitation test were used to detect neutralizing and precipitating antibody to avian reovirus strain wvu2937 in sera from 14 commercial broiler breeder flocks and eight progeny flocks. ten breeder flocks (71%) possessed positive agar gel precipitation reactors (598 sera tested) and 12 (86%) possessed plaque neutralization reactors (114 serum pools tested). all broiler flocks possessed agar gel precipitation reactors, but these were not examined ...1979231481
listeria monocytogenes infections in canada.since its first isolation by murray in 1926 listeria monocytogenes has become recognized as a significant pathogen occurring worldwide and involving a wide range of wild and domestic animals including man. the first confirmed human listeriosis case in canada was published by stoot in 1951. a later survey based on records maintained at the laboratory centre for disease control, ottawa showed 101 cases detected over a 21 year period in nine provinces. the overall mortality was 30%. the most freque ...19846442654
surveillance of listeria monocytogenes in human and environmental specimens in nova scotia, 1974 to 1981.we examined specimens for l. monocytogenes using the "cold enrichment" technique of gray et al. (j. bacteriol., 55: 471, 1948) and a nalidixic agar plate (ann. inst. pasteur 111: 90, 1966). between 1974 and may 1981, we isolated l. monocytogenes from four of 5,255 specimens (rectal, vaginal and placental swabs; blood; spinal fluid; semen; necropsy material) which came from eight human populations (neonates, children, adult men, and pregnant and nonpregnant women) and from 161 animals. three of t ...19846442655
genotyping of canadian field strains of infectious bursal disease virus.for this retrospective study, infectious bursal disease virus (ibdv) was detected in 134 bursal samples that originated from flocks with conditions such as airsacculitis, tracheitis, pneumonia, septicaemia, inclusion body hepatitis, coccidiosis, and/or a history of production problems without overt clinical symptoms. samples were from seven canadian provinces: ontario, quebec, manitoba, british columbia, nova scotia, alberta, and newfoundland and labrador. viral rna was identified in bursae with ...200717899469
genotyping of canadian isolates of fowl adenoviruses.five hundred and seventy-three clinical submissions with fowl adenovirus (fadv) involvement were examined to investigate the association of different types of fadv with clinical problems related to fadv infection. samples were received from 2000 to 2006 and originated from seven canadian provinces. four hundred and eighty-seven submissions were inclusion body hepatitis (ibh) related, while 86 were not ibh related. viruses isolated from 287 samples were further analysed by hexon gene loop 1 seque ...200818202956
genotyping of infectious bronchitis viruses identified in canada between 2000 and 2013.infectious bronchitis virus (ibv) was detected in 185 samples originating from chicken flocks of various commodity groups in canada. flocks with clinical signs such as respiratory challenge, sudden death, egg production problems, or nephropathogenic conditions, and randomly selected flocks sampled at slaughter as part of an ontario broiler surveillance project, were included. most samples were from ontario and québec; however, a small number from british columbia, nova scotia, and newfoundland a ...201424754612
perfluoroalkyl carboxylates and sulfonates and precursors in relation to dietary source tracers in the eggs of four species of gulls (larids) from breeding sites spanning atlantic to pacific canada.in the present study, we identified and examined the spatial trends, sources and dietary relationships of bioaccumulative perfluorinated sulfonate (pfsa; c(6), c(8), and c(10) chain lengths) and carboxylate (pfca; c(6) to c(15) chain lengths) contaminants, as well as precursor compounds including several perfluorinated sulfonamides, and fluorotelomer acids and alcohols, in individual eggs (collected in 2008) from four gull species [glaucous-winged (larus glaucescens), california (larus californi ...201121529948
presumptive ethylene glycol poisoning in chickens. 19979332752
quaternary ammonium compound toxicity in broiler chickens. 19968853881
comparative genomic fingerprinting of campylobacter: application in routine public health surveillance and epidemiological investigations.a subtyping methodology for campylobacter, comparative genomic fingerprinting (cgf40), has been described recently. the objective of this study was to assess the utility of cgf40 as a tool to enhance routine public health surveillance of campylobacteriosis. isolates of campylobacter from across the province were requested and sent for cgf40 subtyping. epidemiological data from cases reported to public health officials in nova scotia, canada, from january 2012 to march 2015 were linked with blind ...201727766988
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