Why do mosquitoes not get malaria?
Shah Academy
the answer. Malaria is not caused by mosquitoes for two reasons.
1. Mosquitoes do not have red blood cells, and the malaria virus mainly attacks red blood cells.
2- The germs of malaria enter the mosquito in this condition, in which case it does not cause malaria, whereas from the mosquito, this germ enters the human being in the state of giving his disease.
The bacterium that causes malaria is "plasmodium", which is transmitted from mosquitoes to humans.
If we look at the life cycle of this germ, its life cycle is divided into two stages, one stage in which it performs sexual reproduction and the other stage in which it performs asexual reproduction, its first stage is in human. And in the second mosquito. The condition of the germs that cause malaria is "sporozoites". Which is born in a mosquito, but is transmitted to humans by the bite of a mosquito, and then these sporozoites enter the human liver, and from there they evolve into a new state, called merozoites. These merozoites then enter the human red blood cells, increase their numbers there and at the same time transform into another state, called gametocytes, and then when another mosquito sucks human blood, these gametocytes enter the mosquito. Are transferred, where these gametocytes turn into sporozoites again.
So the condition in which the malaria germ (plasmodium) is transmitted from human to mosquito is gametocytes, but these gametocytes do not spread the disease. Which causes malaria. But sporozoites mainly attack human red cells, break down red cells and the substances released from these broken cells do more damage to the body.
Mosquitoes do not have red blood cells, they do not have blood, they have hemolymph instead of blood. Therefore, sporozoites live in the salivary glands of mosquitoes, and when a mosquito bites a human, it adds its own saliva to its blood, which prevents blood from clotting and the mosquito drinks blood. Are also included in human blood ...
The female anopheles mosquito usually transmits the malaria virus.
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