Question
The drug of choice for the microorganism shown in the photograph is ?
A. Tetrarycline.
B. Vancomycin.
C. Penicillin.
D. Ampicillin.
Show Answer
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Correct Answer » C Explanation |
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Ans:C. Penicillin.
The organism shown in the picture above represents Corynebacterium diphtheriae .
Corynebacterium diphtheriae
- Corynebacterium diphtheriae is the pathogenic bacterium that causes diphtheria. It is also known as the Klebs-Löffler bacillus.
- Corynebacterium diphtheriae is a nonmotile, noncapsulated, club-shaped, Gram-positive,pleomorphic bacillus.They have the characteristic of forming irregular, club-shaped or V-shaped arrangements in normal growth. They undergo snapping movements just after cell division, which brings them into characteristic forms resembling Chinese letters.Special stains like Alberts’s stain are used to demonstrate the metachromatic granules formed in the polar regions. The granules are called as polar granules, Babes Ernst granules.
- There are two types of clinical diphtheria: nasopharyngeal and cutaneous.
- Treatment:
- Antibiotics (e.g., penicillin and erythromycin) and passive immunization with diphtherial antitoxin.
