Minimizing Antibiotic Resistance Through Judicious Use

Steps:

• Identify the problem: Antibiotic resistance occurs when bacteria evolve to survive drugs due to overuse or misuse.
• Understand causes: Unnecessary exposure selects for resistant strains, spreading them in populations.
• Evaluate options: Assess each choice for promoting or reducing selective pressure on bacteria.
• Select best practice: Choose the method that limits antibiotic exposure to essential cases only.

Why B is correct:

• Using antibiotics only when essential reduces selective pressure, preventing bacteria from developing resistance as defined by evolutionary biology principles.

Why the others are wrong:

• A: Sharing antibiotics promotes incomplete treatment, fostering resistant strains.
• C: Prophylactic use increases unnecessary exposure, accelerating resistance evolution.
• D: Treating all infections with antibiotics ignores viral causes, leading to overuse and resistance.

Final answer: B