TB Transmission via Airborne Pathogens

Steps:

• Identify TB transmission mode: primarily airborne through respiratory droplets from coughing/sneezing.
• Evaluate boiling water: irrelevant, as TB bacterium Mycobacterium tuberculosis spreads via air, not contaminated water.
• Assess antibiotics: effective for treating active TB cases, reducing infectiousness and transmission.
• Consider vaccination: BCG vaccine prevents severe TB in children, lowering overall disease burden and indirect transmission.

Why D is correct:

• TB control follows WHO guidelines emphasizing treatment of cases (antibiotics) and prevention (vaccination) to break airborne chains, excluding water-based measures.

Why the others are wrong:

• A: Boiling water is ineffective against airborne TB spread.
• B: Includes unnecessary boiling water alongside valid measures.
• C: Omits vaccination, which reduces TB incidence and transmission per epidemiological data.

Final answer: D