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 following points highlight the three major disorders caused due to filarial disease. The disorders are: 1. Elephantiasis 2. Hydrocele 3. Chyluria. Disorder # 1. Elephantiasis: The condition is due to hyperplasia of skin and connective tissue, specially involving scrotum, legs and arms. Elephantiasis is the result in many cases of filariasis where in profuse development of skin occurs on [...]
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. [...]