We wrote about the amazing cancer-proof mice a couple of months ago. Now there is speculation that these mice might eventually lead us to finding a way to make cancer-proof people. In fact, they may already be among us -- sort of. The same white blood cells that zap cancer in the amazing mouse may be present in some human beings -- accounting for why some people get cancer and others don't. This could also explain why some people manage to get their cancer into remission and recover much better than others.

Plus, Jan-Willem Bats at Our Technological Future directs us to this very encouraging article about the possibility of HIV immunity.