Preventing bacterial infections to curb antibiotic overuse

Steps:

• Identify antibiotic resistance as bacteria evolving to survive drugs, worsened by overuse.
• Evaluate choices for actions that limit unnecessary antibiotic exposure.
• Check if each promotes prevention over treatment to reduce resistance pressure.
• Select the option aligning with global health strategies like WHO guidelines.

Why D is correct:

• Vaccination prevents bacterial diseases, reducing infection rates and thus antibiotic needs, directly slowing resistance per antimicrobial stewardship principles.

Why the others are wrong:

• A: Sharing antibiotics promotes misuse and incomplete courses, accelerating resistance.
• B: Antibiotics target bacteria, not viruses; using them for viruses wastes them and builds resistance.
• C: Routine antibiotics in healthy animals select for resistant bacteria, entering food chains.

Final answer: D