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3.  Streptococcus suis Type 2 Infection in Swine in Ontario: A Review of Clinical and Pathological Presentations 
Over an 18 month period Streptococcus suis type 2 was isolated in pure or mixed culture in 19 disease outbreaks in pigs. Morbidity and case fatality were variable. Clinical signs were of a nervous or respiratory disease or of death with no premonitory signs. Gross and microscopic findings included one or more of fibrinous polyserositis, fibrinous or hemmorhagic bronchopneumonia, purulent meningitis, myocardial necrosis, focal myocarditis and valvular endocarditis. Brain, cerebrospinal fluid and lung were most reliable sites for isolation of the organism.
PMCID: PMC1790136  PMID: 17422123
6.  Isolation of Ureaplasma from bovine granular vulvitis. 
Cultures for mycoplasmatales, viruses and bacteria were made from bovine vulvar swabs to determine whether ureaplasma was associated with a clinical granular vulvitis observed in 16 Ontario dairy herds. Ureaplasma was isolated from 23.5% of 34 clinically normal cows, 74% of 27 cows with mild to moderate vulvar hyperemia but no discharge and 100% of 20 cows with acute vulvar hyperemia accompanied by purulent discharge. There were statistically significant differences in rates of isolation among clinical groups. Mycoplasma bovigenitalium was isolated from 7.7% and 20% of cows with moderate or acute vulvitis respectively but not from normal cows. Haemophilus somnus was isolated from 25% of cows with acute vulvitis. There were no significant differences in isolations of Escherichia coli, Corynebacterium pyogenes and alpha-hemolytic streptococcus between normal and clinically affected animals. Cultures of 135 repeat samples from 33 cows revealed that ureaplasma persisted in some animals for at least three months. No viruses were isolated from any of the animals in this study.
PMCID: PMC1277608  PMID: 352491

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