We know that malaria is a common disease in many countries including Pakistan, we will look at the history of this disease, how biology solved the problem of biologists related to the cause of malaria? He states that it is a disease of chills and fever with frequent attacks. It was observed that the disease was in a low swampy area, because of which the stagnant water of the swamps poisoned the air and spoiled it. People got malaria as a result of inhaling it .They were also under the rule of law.

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