Zoology - Human Health and Diseases Question with Solution | TestHub

Wuchereria- the filarial worm (W. bancrofti and W. malayi) - a helminth.

Disease: Elephantiasis or Filariasis

Mode of infection: By the bite of a female mosquito (vectors).

Life cycle: Entry of Wuchereria into the body of humans$\to$A chronic inflammation develops slowly for many years usually in the lymphatic vessels of the lower limbs$\to$Affected organs become swollen (filariasis or elephantiasis).

Sign and symptoms: Lower limbs and genital organs are usually involved, resulting in gross deformities.

Plasmodium(a protozoan) [Different species ofPlasmodium-P. vivax, P. malaria, andP. falciparum]

Mode of infection: Bite of female Anopheles mosquito.

The infectious form ofPlasmodium: Sporozoites.

Sign and symptoms: Chill and high fever recurring every 3 to 4 days.

Life cycle:Plasmodiumrequires two hosts to complete its life cycle - Human (host) and female Anopheles mosquito (vector).