Can HIV be transmitted through mosquito bites?
Disease description:
36-year-old female. Over the past few days, she developed redness, swelling, and itching after being bitten by insects; in severe cases, the affected area hardened into a nodule. She would like to know whether mosquito or insect bites can transmit HIV/AIDS.
HIV infection cannot occur through mosquito bites. The transmission routes of HIV include blood transfusion, sexual contact, and mother-to-child transmission. The blood of individuals infected with HIV contains high levels of the virus; however, when a mosquito bites an infected person, although virus-containing blood is ingested, HIV cannot survive or replicate inside the mosquito and is rapidly destroyed by digestive enzymes in the mosquito’s gut. Moreover, mosquitoes do not inject blood into their next host during subsequent bites. Even if minute traces of blood remain on the mosquito’s proboscis, the quantity of virus is far too low to cause infection, and the virus quickly becomes inactive outside the human body.