| incidence and pathogenicity of arcanobacterium haemolyticum during a 2-year study in ottawa. | arcanobacterium haemolyticum has been described as a rare cause of systemic invasive disease and is occasionally isolated from throat swabs. we describe a 2-year study of the incidence and clinical features of a. haemolyticus infection in a pediatric and adolescent population. a total of 11,620 throat swabs were examined for a. haemolyticum with use of a locally developed selective medium. controls (2,241) were healthy students who were recruited from a separate study. a. haemolyticum was isolat ... | 1995 | 7578727 |
| diseases and pathogens associated with mortality in ontario beef feedlots. | this study determined the prevalence of diseases and pathogens associated with mortality or severe morbidity in 72 ontario beef feedlots in calves that died or were euthanized within 60 days after arrival. routine pathologic and microbiologic investigations, as well as immunohistochemical staining for detection of bovine viral diarrhea virus (bvdv) antigen, were performed on 99 calves that died or were euthanized within 60 days after arrival. major disease conditions identified included fibrinos ... | 2006 | 16566254 |
| microbiological identification and analysis of swine tonsils collected from carcasses at slaughter. | the primary objective of this 7-month study was to determine the prevalence of porcine pathogens of the tonsil of the soft palate of swine at slaughter. additional objectives were to determine if sampling the carcasses of normal or abnormal hogs provided different microbiological profiles and if the slaughter plant provides a feasible sampling frame and environment for detecting and monitoring important pathogens in tonsils that have health implications for both swine and humans. a total of 395 ... | 2011 | 21731180 |