HIV spreads through bodily fluid exchange, but why can’t mosquitoes sucking blood spread it?

Question

HIV spreads through bodily fluid exchange, but why can’t mosquitoes sucking blood spread it?

In: 3743

Answer 1

All diseases that can be spread by insects must have a stage that can replicate in the insect. Usually in its salivary glands. Viruses like HIV not only lack any ability to replicate in insects, they are structurally very fragile and easily inactivated when taken outside the human body, that’s why it takes a heavy and direct exchange of body fluids to transmit HIV.