In this article we will discuss about the important features in the life history of filarial worm (explained with diagram). Filarial worm is a dreaded human parasite of blood and lymph. It is a digenetic parasite completing its life cycle in two hosts—man and mosquito. Copulation and release of microfilariae in man: Man is the only definitive host, in whose [...]
The upcoming discussion will update you about the difference between classical and occult filariasis. Difference # Classical Filariasis: i. Cause: Growing worms and adults. ii. Basic lesions: An acute inflammation followed by an epitheloid granuloma surrounding the adult worm of W. bancrofti. iii. Organs concerned: Lymphatic system (i.e., lymph vessel and lymph node) iv. Microfilaria: Present in peripheral blood circulation. [...]
The upcoming discussion will update you about the difference between W.Bancrofti and B.Malayi. Difference # W. Bancrofti: Adult worms are creamy white, filiform and have cylindrical body with tapering ends. Posterior end of male is sharply curved ventrally bearing two unequal copulatory spicules. The female has narrow and abruptly pointed tail end. Microfilariae are 225 to 300 µm long and [...]