Can Mosquitoes Spread HIV?
Several studies have been done to determine whether mosquitoes can spread HIV. These studies have shown that mosquitoes are not a major threat to humans and do not present a risk for transmission. The lack of outbreaks also supports this conclusion.
The Human Immunodeficiency Virus, known as HIV, is a virus that is adapted to infect humans. It attacks the immune system and weakens it over time.
Infection with HIV requires that a certain amount of the virus is present in a person’s blood. This is done by either sexual intercourse or by sharing needles. A person can carry up to ten units of the virus. But, the virus only circulates in human blood at a low level. Consequently, it would take ten million bites from mosquitoes to transmit one unit of the virus.
When a person is infected with HIV, the virus enters the human T cells. T cells are a type of cell that has specific receptors on them. These receptors bind the virus and integrate the DNA into the host cell. This process is very quick, as the virus is digested with the blood meal. The particles of the virus are then destroyed during the digestion process.
Unlike other viruses, HIV cannot survive in the mosquito’s gut. In fact, the virus dies after a few days. The reason for this is that the mosquito’s digestive system is designed to break down the virus. This process breaks down the virus’ protein and allows it to be discarded.