In hot summers and cold winters,malaria cases | vedclass

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(A) Malaria is caused by the protozoan parasite $Plasmodium$. During unfavorable conditions like extreme heat or cold,the adult mosquitoes may die or

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Survival of malaria parasites in human carriers

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(A) Malaria is caused by the protozoan parasite $Plasmodium$. During unfavorable conditions like extreme heat or cold,the adult mosquitoes may die or become inactive. However,the $Plasmodium$ parasite survives within the human host (the reservoir) during these periods. When hot-humid conditions return,the mosquito population increases,and they pick up the parasite from infected humans,leading to a resurgence of malaria cases. Thus,the survival of the parasite in human carriers is the primary reason for the reappearance of the disease.

In hot summers and cold winters,malaria cases and $Anopheles$ mosquitoes are seen less frequently. They reappear in hot-humid conditions due to:

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