AP - The global economic turmoil is likely to take its toll on AIDS research funding and add to the problems plaguing the search for a vaccine against the virus, scientists warned Tuesday.

AP - Nearly one in three patients who need a kidney transplant may never get one because their bodies are abnormally primed to attack a donated organ. Now doctors are trying new ways to outwit the immune system and save more of those so-called "highly sensitized" patients — often with kidneys donated by living donors, considered the optimal kind.

AP - China's store shelves are being cleared of all milk and milk powder more than a month old, a huge recall that marks the latest government effort to restore consumer confidence after four babies died from drinking milk tainted with an industrial chemical.