Explain Why mosquito not transmit hiv?
Asked By Sakshi
Replied by Admin
Mosquitoes cannot transmit HIV. There are a few reasons for that, but the important three reasons are : 1) When the mosquito bites with its probosis, it injects its own saliva and blood is sucked into the stomach where it is digested. The virus dies almost instantly in the insect's stomach which contains antiviral factors and immunoglobulins and hence cannot transmit HIV. The blood from one person is not injected into the mosquito's next victim. 2) HIV can only live in human cells. HIV dies in the mosquito body because the mosquito after sucking the blood will digests the blood and has also digested all the virus containing cells. 3) Mosquitoes cannot transmit HIV as for transmission, HIV need to be able to leave the gut intact and then has to replicate in the mosquitos. But this is not possible, due to the missing of the CD4 antigen on the surface of the mosquito cells. And these are needed as a surface receptor for the virus to bind and enter the cells. HIV can only be transmitted through blood (either through direct transmission, operations etc.), through semen (cum), pre-seminal fluid (pre-cum), rectal fluids, vaginal fluids, and breast milk.
- 05 Nov 2017 @ 08:22