It's on Ars Technica now. They managed to trick a mouse's body, whose immune system was killed off and replaced with a human one, to make anti-bodies that are effective against HIV, just like people who are naturally immune to the virus. According to the article, this has been attempted many times before, but it never works. These researchers, should their work be duplicated and verified, have probably figured out a real way to prevent the virus from infecting people. The initial amount of HIV in the experiments was much higher than a normal infection would ever start with, so it means that it would probably work at much lower amounts of exposure.
Wow.
This is different, if you are keeping track of things, from the man who had his immune system wiped out (due to chemo, I believe) and received a bone marrow transplant from someone with a natural immunity to the virus. That is something that could not work for most people, but this is something that would.
http://arstechnica.com/science/news/2011/12/short-circuiting-the-immune-system-to-block-hiv.ars*A DOI to the actual paper is included in the article for those smart enough to get it in more detail.
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