Filariasis

Filariasis is a mosquito-transmitted parasitic round worm infection transmitted through the bite of mosquitoes. It is found in tropical area of Africa, Asia, and Central and South America, and in the Pacific.

Once inside a host, the worm larvae migrate through the lymphatic channels and become trapped in lymph nodes and tissues.

There is a range of possible manifestations of the infection, depending on which filarial parasite species has caused the infection. These include fever, pain and swelling of the lymph glands, inflammation of lymph drainage areas, swelling of the scrotum, skin rashes and blindness. Progression of the disease often causes grotesque enlargement of the legs known as elephantiasis.

Treatment is available to eliminate the parasites from the body, but some of the damage they cause may not be reversible. Medical advice should be obtained promptly if the infection is suspected. Prevention of insect bites is the first line of defense.

No vaccine is available.

Diseases