Repeated mosquito bites over several
months to years are needed to get lymphatic filariasis.
People living for a long time in tropical
or sub-tropical areas where the disease is common are at the greatest
risk for infection.
Transmission of the disease can occur via
the bite of blood-feeding female mosquitoes (Culex
quinquefasciatus mosquitoes and
some speciesof Anopheles) which transmit
immature larval forms of the parasitic worms from human to human.