QUESTION
How soon does a person usually to feel ill after malaria infection?
ANSWER
After being bitten by an infected mosquito, there is an “incubation period” before the person begins to suffer from symptoms of malaria. This time corresponds to the period the malaria parasite spends in the liver; it is once it enters the blood and begins to destroy red blood cells that initiate the onset of symptoms. The length of the incubation depends on a number of factors, including the type of malaria and whether the person has been taking anti-malarial preventative medication (prophylaxis), but the usual length of time is between 1-4 weeks.
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