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colonial morphology displayed by gram negative yersinia pestis bacteria
yersinia pestis bacteria appearance of the colonial growth after 48 hours of incubation
gram negative yersinia pestis bacteria y pestis
bubonic plague smear demonstrating the presence of yersinia pestis bacteria
yersinia pestis bacteria which was grown on a medium of sheeps blood agar
yersinia pestis bacteria bacteria plague
yersinia pestis bacteria bacteria at a temperature of 25 degrees celsius
temperature of 37 c y pestis bacteria cause the infectious disease known as plague1
when bubonic plague is left untreated yersinia pestis bacteria invade the bloodstream
temperature of 37 c y pestis bacteria cause the infectious disease known as plague
plague bacteria multiply in the bloodstream
petri dish containing sheeps blood agar medium which had been inoculated with yersinia pestis bacteria
inoculated with gram negative yersinia pestis bacteria y pestis
gram negative yersinia pestis bacteria grown rown on a medium of chocolate agar after 72 hours