All are true about communicability of Malaria, except-
Correct Answer: The number of gametocytes in blood increases with time
Description: Ans. is 'a' i.e. The number of gametocytes in blood increases with time o A malarial parasite (Plasmodium) has got 2 hosts Man is the intermediate host Mosquito is the definitive host o Plasmodium undergoes 2 cycles of development - The asexual or human cycle The sexual or mosquito cycle o The mosquito cycle begins when a mosquito feeds on an infected mass and ingests gametocytes o Malaria is communicable as long as mature, ble gametocytes exist in the human circulating blood in sufficient density to infect vector mosquitoes. o In P. vivax infections, gametocytes appear in blood 4-5 days after the appearance of the asexual parasites. o In P. falciparum infections gametocytes appear 10-12 days after the first appearance of asexual parasites. o Gametocytes are the most numerous during the early stage of infection when their density may exceed 1000 per cubic mm of blood. o They also tend to occur in waves in blood.
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