Question

A greater antimicrobial susceptibility can be estimated by

• A. Wide zone of inhibition
• B. Narrow zone of inhibition
• C. Dense microbial growth
• D. None of the above

Answer 1

Answer: (A)

Wide zone of inhibition

Antibiotics susceptibility test is performed to study the interaction of the antibiotics on the growth of a particular microbe. The microbes are cultured and then tested with the range of antibiotics. The antibiotic which acts against the microbe and inhibits the growth of microbes is studied and the concentration is optimised. The inhibition is measured with respect to a wide zone of inhibition observed in the growth of the microbe in the culture plate.

Thus, the correct answer is option A.