Wuchereria bancrofti, Brugia malayi, and B. timori are mosquito-borne nematode parasites that are important causes of morbidity, disability, and social stigma in tropical and subtropical countries. Bancroftian filariasis due to W. bancrofti, which has no animal reservoir, accounts for 90% of human infections worldwide.

Acute lymphatic filariasis—(1) lymphadenitis and lymphangitis—most common in the inguinal and femoral nodes; (2) acute genital—usually tender fusiform or cylindrical swelling of the spermatic cord; (3) abscess and fever—affected nodes may break down to produce an open...

Wuchereria bancrofti, Brugia malayi, and B. timori are mosquito-borne nematode parasites that are important causes of morbidity, disability, and social stigma in tropical and subtropical countries. Bancroftian filariasis due to W. bancrofti, which has no animal reservoir, accounts for 90% of human infections worldwide.

Acute lymphatic filariasis—(1) lymphadenitis and lymphangitis—most common in the inguinal and femoral nodes; (2) acute genital—usually tender fusiform or cylindrical swelling of the spermatic cord; (3) abscess and fever—affected nodes may break down to produce an open ulcer....