A patient has severe catarrhal symptoms. Material growth on Bordet-Gengou agar showed mercury-droplike colonies. Examination of the blood smears revealed some small ovoid grampositive bacilli sized 1-3 microns. What microorganisms were isolated?

Question

Answer options

Meningococcus
Corynebacteria
Brucella
Mycobacteria
Bordetella

Correct answer

Bordetella

Explanation

A patient has severe catarrhal symptoms. Material growth on Bordet-Gengou agar showed mercury-droplike colonies. Examination of the blood smears revealed some small ovoid grampositive bacilli sized 1-3 microns. What microorganisms were isolated?Bordetella on agar has the characteristic mercury-droplike colony.

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