Part 8 · Intestinal, Vector-Borne and Zoonotic Diseases
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| Feature | Wuchereria bancrofti (≈ 99% in India) | Brugia malayi |
|---|---|---|
| Vector | *Culex quinquefasciatus* (urban, polluted water) | *Mansonia (annulifera, uniformis*; Kerala, aquatic plants) |
| Periodicity | Nocturnal periodic (peak ≈ 10 pm–2 am) | Nocturnal (subperiodic forms) |
| Distribution | ≈ 330–340 endemic districts across about 20 states/UTs (UP, Bihar, Jharkhand, Odisha, Andhra Pradesh, Telangana and others) | Kerala, coastal pockets |
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