Animals like flies and mosquitoes carry pathogens which are harmful to animals. so when they carry these, dont the flies or mosquitoes get affected?

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Solution

Flies and mosquitoes that carry pathogens are the vector of the disease. Vector merely transports the disease and will not have any traces of the disease. They take the disease from an infected individual to an healthy individual. The flies or mosquito get infected but does not show any symptoms. This is due to the reason that malarial parasite or dengue virus infects and demages specific organs like liver or blood cells like (RBCs). As liver or RBCs are not present in mosquito, so they do not get infected.

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