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Microbiology
In a completely and adequately immunized child against Diphtheria, the throat swab was collected. It showed the presence ofCorynaebacterium diphtheriae like organisms on Albe staining. These orgainisms can have one of the following propeies on fuher laboratory processing -
It can grow on Potassium tellurite medium
It would show a positive Elek's gel precipitation test
It can be pathogenic to experimental guinea pigs
It can produce cytotoxicity in tissue cultures
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