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Mass drug administration — DTM&H MCQ

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ModerateEpidemiology and public healthMass drug administrationDTM&H

A district has lymphatic filariasis prevalence above elimination thresholds. There is no known high-burden Loa loa transmission. What is the most appropriate prophylaxis?

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Correct answer: B — Community mass drug administration with appropriate regimen

Community mass drug administration with appropriate regimen is the single best answer because lymphatic filariasis elimination uses repeated community MDA where safe and indicated. Treat symptomatic hydrocele cases alone is plausible in a related presentation, but it is less appropriate because it does not fit the key discriminator in this vignette. The teaching point is that morbidity management for lymphoedema is also needed but does not interrupt transmission by itself.

Reference: WHO outbreak investigation guidance; Sphere Handbook; Manson's Tropical Diseases