Microbiology

All of the following lab tests can be used to distinguish streptococcus mutans from other oral streptococci, except______________?

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All of the following lab tests can be used to distinguish streptococcus mutans from other oral streptococci, except______________?

A. Gram staining
B. Fermentation of mannitol and sorbital
C. Production of intracellular and extracellular adherent polysacharide
D. Colony morphology on saliva agar

A veterinary doctor had pyrexia of unknown origin His blood culture in special laboratory media was positive for gram negative short bacilli which was oxidase positive. Which one of the following is the likely organism grown in culture ?

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A veterinary doctor had pyrexia of unknown origin His blood culture in special laboratory media was positive for gram negative short bacilli which was oxidase positive. Which one of the following is the likely organism grown in culture ?

A. Pasturella spp
B. Francisella spp
C. Bartonella spp
D. Brucella spp