The WHO 'best buys' are highly cost-effective interventions for prevention and control of non-communicable diseases. Which of the following is classified as a 'best buy' intervention?

• A Annual chest radiography for all adult smokers
• B Mass media campaigns alone to promote physical activity
• C Universal low-dose aspirin prophylaxis for all adults above 40 years
• D Increasing excise taxes on tobacco products ✓

Explanation

WHO classifies tobacco tax and price increases among the most cost-effective 'best buy' interventions, alongside smoke-free policies, salt reduction, and hepatitis D vaccination. Universal aspirin is not a best buy because bleeding risks outweigh benefits in unselected populations, and annual radiographic screening of smokers has never shown mortality benefit. Mass media campaigns alone are considered less effective than fiscal and regulatory measures.

Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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