Q.Filariasis disease is caused by :

Filariasis is caused by thread-like nematode worms — lymphatic filariasis (classic elephantiasis) specifically by Wuchereria bancrofti, Brugia malayi and Brugia timori — transmitted person to person by the female Culex mosquito. Worms settle in the lymphatic system, causing oedema, thickened skin, enlarged lymph vessels/nodes and grossly swollen limbs (elephantiasis), lymphoedema, and hydrocele (fluid-swollen testes) where W. bancrofti affects the scrotum. Larvae penetrate the sk …