The results of experiments and observations of insect biting behavior indicate that when an insect bites a person, it does not inject its own or a previously bitten person’s or animal’s blood into the next person bitten.

Rather, it injects saliva, which acts as a lubricant or anticoagulant so the insect can feed efficiently. Since the pathogens that can cause diseases such as yellow fever and malaria exist in saliva they are transmitted through the saliva during feeding process of bloodsucking insects.

However, HIV lives for only a short time inside an insect and, unlike organisms that are transmitted via insect bites; HIV does not survive and reproduce in insects.

Thus, even if the virus enters a mosquito or another sucking or biting insect, the insect does not become infected and cannot transmit HIV to the next human it feeds on or bites.

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Hence there is no reason to fear about the biting or bloodsucking insects in case of HIV transmission.

There is also no reason to fear that biting or bloodsucking insects, such as a mosquito, testees fly etc could transmit HIV from one person to another through HIV-infected blood left on its mouth parts.

Two factors serve to explain why this is so-first, infected people do not have constant, high levels of HIV in their bloodstreams and, second, insect mouth parts do not retain large amounts of blood on their surfaces. Further, scientists who study insects have determined that biting insects normally do not travel from one person to the next.