Wuchereria Bancrofti Life Cycle
Wuchereria Bancrofti passes its cycle in two host;
1. Man (definitive host)
2. Mosquito (Intermediate host)
When mosquito bites human being infective filariform larvae migrate by Saliva in host blood.
Larvae enter in various tissues of host and develop into adult male and female worms.
Adult worms block lymphatic channel and cause elephantiasis.
Adult worm live, in lymphatic system, male worm fertilize female worm.
Female worm releases infective microfilaria larvae in peripheral blood especially at night.
At night mosquito bites infective person and takes up microfilaria larvae with blood meal which multiply by binary fission in mosquito gut wall.
As result microfilaria converted into infective filariform larva which enter in salivary glands of mosquito, life cycle is repeated on mosquito bite.
1. Infective filariform larvae migrate by saliva, when mosquito bites human being.
2. In human body, larvae enter various tissue and reaches lymphatic channels.
3. Settle down in lymph nodes and develop into adult male and female worms.
4. Adult worm live in lymphatic channel and cause elephantiasis.
5. Male worm fertilize female worm and female worm releases infective microfilaria larvae in peripheral blood.
6. Microfilariae in men blood stream, mosquito during blood meal taken up microfilaria.
7. Microfilarial larvae multiply by binary fission into mosquito's gut wall.
8. Finally infective larvae enter in salivary gland of mosquito.
0 Comments