| prevalence of actinobacillus pleuropneumoniae, actinobacillus suis, haemophilus parasuis, pasteurella multocida, and streptococcus suis in representative ontario swine herds. | tonsillar and nasal swabs were collected from weanling pigs in 50 representative ontario swine herds and tested for the presence of 5 important bacterial upper respiratory tract pathogens. all but 1 herd (2%) tested positive for streptococcus suis by polymerase chain reaction (pcr); 48% of herds were s. suis serovar 2, 1/2 positive. in all but 2 herds there was evidence of haemophilus parasuis infection. in contrast, toxigenic strains of pasteurella multocida were detected by a p. multocida--enz ... | 2008 | 18505187 |
| 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 |
| surveillance of antimicrobial resistance in clinical isolates of pasteurella multocida and streptococcus suis from ontario swine. | susceptibility results for pasteurella multocida and streptococcus suis isolated from swine clinical samples were obtained from january 1998 to october 2010 from the animal health laboratory at the university of guelph, guelph, ontario, and used to describe variation in antimicrobial resistance (amr) to 4 drugs of importance in the ontario swine industry: ampicillin, tetracycline, tiamulin, and trimethoprim-sulfamethoxazole. four temporal data-analysis options were used: visualization of trends ... | 2014 | 25355992 |
| multiple-class antimicrobial resistance surveillance in swine escherichia coli f4, pasteurella multocida and streptococcus suis isolates from ontario and the impact of the 2004-2006 porcine circovirus type-2 associated disease outbreak. | the objective of this work was to describe trends in multiple-class antimicrobial resistance present in clinical isolates of escherichia coli f4, pasteurella multocida and streptococcus suis from ontario swine 1998-2010. temporal changes in multiple-class resistance varied by the pathogens examined; significant yearly changes were apparent for the e. coli and p. multocida data. although not present in the e. coli data, significant increases in multiple-class resistance within p. multocida isolat ... | 2014 | 24309129 |
| antimicrobial susceptibility of escherichia coli f4, pasteurella multocida, and streptococcus suis isolates from a diagnostic veterinary laboratory and recommendations for a surveillance system. | antimicrobial susceptibility data on escherichia coli f4, pasteurella multocida, and streptococcus suis isolates from ontario swine (january 1998 to october 2010) were acquired from a comprehensive diagnostic veterinary laboratory in ontario, canada. in relation to the possible development of a surveillance system for antimicrobial resistance, data were assessed for ease of management, completeness, consistency, and applicability for temporal and spatial statistical analyses. limited farm locati ... | 2014 | 24688133 |
| streptococcus suis in slaughter pigs and abattoir workers. | the detection and identification of streptococcus suis type 2 in 8.1% of 347 pig herds of southwestern ontario revealed that the infection is widespread in this area. a herd suspected to be infected showed a carrier rate of 9.7% among the 62 animals sampled. these subclinical carriers represent a potential source of infection for slaughterhouse workers. from studies of contamination of hands and knives, it was concluded that eviscerators involved in removing the larynx and lungs from the carcass ... | 1986 | 3742369 |