Yersinia pestis is a zoonosis disease categorized in the family enterobacteriaceae. It is a non-spore forming, gram-negative coccobacilli that, when grown on agar, forms pin-point white/translucent colonies. Defining qualities of the Y. pestis are it’s bipolar staining, it’s negative test results for lactose fermentation, urease, and indole production, and positive testing for catalase. This pleomorphic bacterium is facultatively aerobic with an optimal growth temperature at 28 degrees Celsius. At temperatures above 37 degrees Celsius, it appears the Y. pestis is non-motile, but at temperatures less than 30 degrees Ce...
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