But, how does a mosquito get afflicted by such a parasite?
As mentioned earlier, malaria is transmitted by Anopheles mosquitoes, where the severity of this disease depends on factors like the vector, types of parasite, human host and the climate.
The climatic condition plays a key role since mosquito breeds are found only in places with specific temperature ranges. Malaria epidemics occur during monsoons, in places with high humidity levels and where people have little or no immunity. But how exactly does the transmission occur?
Generally, these mosquitoes get infected after biting someone who has been suffering from this disease already. At such a time, the insect ingests a small amount of infected blood containing the malaria parasites. Next, when it bites another person, the parasite mixes with its saliva and gets transferred to this other person’s body.
Initially, these parasites travel to the liver and then make their way to the bloodstream to infect red blood cells. Apart from this, there are multiple other ways a healthy person may be affected by malaria, such as through organ transplant, blood transfusion, etc. There are also instances of congenital malaria where the disease can transmit from an infected mother to her baby at birth during delivery.