Zoology - Human Health and Diseases Question with Solution | TestHub

Plasmodium causes malaria. It requires two host: Man and mosquito to complete its cycle. . Sporozoites are infectious agents of malarial parasites. When female mosquito bites the human, these enter the blood stream. Inside the body these have an Erythrocytic and Exoerythrocytic cycle. When in human body, the infectious agent undergoes many developmental stages (Asexual reproduction). It also produces toxin known as haemozoin inside the body and this is responsible for various symptoms like fever, chills etc. When healthy mosquito bites such an infected human, these agents enter the mosquitoe's body and starts its sexual reproduction which transforms into various forms and reside in the salivary gland. This healthy mosquito is now an infected one and if this again bites any human, the same cycle continues.