Influenza vaccine is generally recommended for which of the following groups?

Correct Answer: C

Rationale: Influenza vaccine is recommended for high-risk groups like those with severe pulmonary disorders, not universally for all over 55, children, or pregnant women unless other risks apply.

Correct Answer: D

Rationale: Meningococcal meningitis spreads person-to-person via respiratory droplets, unlike the others, which are vector-borne.

Correct Answer: A

Rationale: Hypertension treatment reduces stroke risk significantly, though CHD benefits are less clear. Awareness is improving, and benefits are proven in both sexes.

Correct Answer: D

Rationale: Vitamin E doesn’t directly affect plasma lipid levels, unlike the others.

Correct Answer: C

Rationale: Crohn’s disease incidence is higher in Jews; colectomy isn’t universally recommended for either condition after 20 years.