Diseases & National Health Programme
The organism most commonly causing genital filariasis in most parts of Bihar and Eastern U.P. is:
Lymphatic filariasis is caused by W. bancrofti, B. malayi, or Brugia timori. The thread-like adult parasites reside in lymphatic channels or lymph nodes, where they may remain viable for more than 2 decades. Lymphatic filariasis is a major health problem in India. Heavily infected areas are found in UP, Bihar, Jharkhand, Andhra Pradesh, Orissa, Tamil Nadu, Kerala and Gujarat. In chronic Bancroftian filariasis, the main clinical features are hydrocele, elephantiasis and chyluria. Elephantiasis may affect the legs, scrotum, arms, penis, vulva and breasts, usually in that order of decreasing frequency. The Brugian filariasis is generally similar to Bancroftian filariasis, but strangely the genitalia are rarely involved.