QUESTION
Can mosquito cause AIDS, and why?
ANSWER
No, HIV (the virus that causes AIDS) cannot be transmitted via mosquitoes. When the virus was first discovered, there was a fear that it could be transmitted via the blood ingested by mosquitoes as they feed between humans. However, it was shown very quickly that the virus was too unstable to survive within the mosquito, and so transmission of HIV is limited to direct transfer of blood, semen, vaginal fluid and breast milk, for example during sharing of intravenous needles, unprotected sexual activity and childbirth.
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