Living Environment Regents Practice Test

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What role do phages play in treating acne?

Eliminate all bacteria in the skin
Target and destroy specific bacteria causing infection
Promote excessive oil production
Replace the body's natural skin bacteria

The correct answer is: Target and destroy specific bacteria causing infection

Phages, or bacteriophages, are viruses that specifically infect and kill bacteria. In the context of treating acne, they are utilized to target and destroy the specific bacteria responsible for the condition, primarily Propionibacterium acnes. This targeted approach allows phages to reduce the bacterial population that contributes to acne formation without adversely affecting beneficial skin flora. By focusing on the harmful bacteria, phages provide a more precise treatment compared to broad-spectrum antibiotics that can disturb the overall microbial balance of the skin. This selective targeting helps to manage acne effectively while minimizing potential side effects associated with broader antibacterial treatments.