The organism most commonly causing genital filariasis in most parts of Bihar and Eastern U.P. is

• Problem statement of Lymphatic filariasis: – Global: Affects 120 million people in 120 countries; 1.1 billion people live in areas with risk of infection. SEAR: 600 million live in endemic areas; 60 million infected. India: Lymphatic filariasis is a major public health problem in India with 553 million people at risk in 233 districts; heavily endemic in UP, Bihar, Jharkhand, Andhra Pradesh, Orissa, Tamil Nadu, Kerala, Gujarat.