Research chimps living in lab cages in the U.S. are at last going to do what retirees are meant to do: sit in the sun and bicker.

The National Institutes of Health announced today that most of America's federal stockpile of chimpanzees will be permanently retired from biomedical research. Of the 360 chimps currently available for testing, 310 are to be irrevocably assigned to the Federal Sanctuary System. The remaining 50 will still be eligible to be recalled for research, if necessary.

Researchers at a major AIDS conference in Atlanta announced today that a 2½ year child in Mississippi born with HIV has been cured of the virus after taking an aggressive regimen of drugs since birth. The child, whose mother had stopped giving her medication, is the second confirmed case of a human being cured of HIV, after a man was cured in 2010 when he received a bone marrow transplant.