HIV Antibodies

Question

I am confused about HIV antibodies...why do they not offer protection in the individual who has the virus? Isn't that what antibodies are meant to do? I asked a previous question about maternal HIV antibodies; why are they not protective for the baby as with other viruses' eg measles?

Answer

Because the HIV antibodies that are made by the immune system are not efficient in trapping and containing the virus. This is not the case with measles for instance. Part of the reason is that HIV is a swarm of slightly different viruses and the immune system can't make all the different antibodies required to neutralize all the different viruses within a person.