Which one of the following shows if a clinical isolate of Corynebacterium diphtheriae is toxigenic?
a. Bacterial agglutination with specific antisera
b. Colonial morphology on blood tellurite medium
c. Positive Elek plate
d. Positive identification of “gravis” strain
e. Positive Schick test.
Karishma_Khanna Answered question July 27, 2022
Positive identification of “gravis” strain.Toxigenic strains secrete a potent exotoxin which may cause diphtheria
Karishma_Khanna Answered question July 27, 2022