What is a general consequence of overusing antibiotics in the population?

What is a general consequence of overusing antibiotics in the population?

• A. They lose their effectiveness and drug-resistant strains may develop.
• B. They always prevent diarrhea.
• C. They enhance the immune system's response.
• D. They are always covered by insurance.

Answer: (B)

Overusing antibiotics creates selective pressure that allows drug-resistant bacteria to survive and multiply. As resistant strains emerge and spread, antibiotics become less effective for treating common infections, leading to longer illnesses, more hospitalizations, and greater risk of severe outcomes. This consequence matters at the population level because resistant bacteria can pass between people and into healthcare facilities, making future care more difficult and costly. The other statements don’t fit: antibiotics do not universally prevent diarrhea and can actually cause diarrhea or C. difficile infection by disturbing the gut microbiome, they do not enhance the immune system, and insurance coverage isn’t determined by whether antibiotics are overused.

Overusing antibiotics creates selective pressure that allows drug-resistant bacteria to survive and multiply. As resistant strains emerge and spread, antibiotics become less effective for treating common infections, leading to longer illnesses, more hospitalizations, and greater risk of severe outcomes. This consequence matters at the population level because resistant bacteria can pass between people and into healthcare facilities, making future care more difficult and costly. The other statements don’t fit: antibiotics do not universally prevent diarrhea and can actually cause diarrhea or C. difficile infection by disturbing the gut microbiome, they do not enhance the immune system, and insurance coverage isn’t determined by whether antibiotics are overused.