Primary prevention aims to reduce the incidence of disease by addressing risk factors before disease occurs. Is this statement true?

• A. Yes
• B. No
• C. Sometimes
• D. Never

Answer: (A)

Primary prevention focuses on preventing disease before it starts by cutting off risk factors and encouraging healthier choices. Because it acts before illness develops, it lowers the number of new cases in a population—incidence. Vaccines, sanitation, and health‑promotion efforts like quitting smoking, eating well, exercising, and reducing environmental risks all work by preventing disease from ever occurring. When these measures succeed, fewer people become sick, which is exactly the goal of reducing incidence. For contrast, secondary prevention aims to detect disease early to prevent progression, and tertiary prevention aims to reduce damage once a disease is established.