Define incubation period. What is its duration in the life cycle of Plasmodium vivax?
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Life Span. Once ingested by a mosquito,malaria parasites must undergo development within the mosquito before they are infectious to humans. The timerequired for development in the mosquito (the extrinsic incubation period) ranges from 10 to 21 days, depending on the parasite species and the temperature.
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The time elapse between the exposure to the pathogens or any chemical or radiation is the incubation period. During this period symptoms and signs are apparent. In case of infectious diseases, incubation period is the time taken by the organism to multiply until its number reaches a threshold level that produces symptoms in the host. Usually, this time period varies depending on which species of Plasmodium is the causative agent. But average time period for incubation is 12-17 days for the infections caused by Plasmodium vivax.
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