AP - The number of Americans infected by the AIDS virus each year is much higher than the government has been estimating, U.S. health officials reported, acknowledging that their numbers have understated the level of the epidemic.

AP - A hormone better known for illicit use among athletes can help treat troublesome complications from the AIDS virus, but with potentially risky side effects, a small study found.

AP - Keren Dunaway was 5 when her parents used drawings to explain to her that they both had the HIV virus — and so did she.

AP - In this small Nile River farming village, Maha Mohammed has started to doubt whether she should circumcise her two daughters.

AP - When Abbott Laboratories Inc. hiked up the price of a popular AIDS drug by 400 percent in 2003, executives prepared for the inevitable public relations hit, but assured themselves the backlash would be brief.

AP - The teenage brain, Laurence Steinberg says, is like a car with a good accelerator but a weak brake. With powerful impulses under poor control, the likely result is a crash.

AP - Kimberly Lindsey marvels that her 3-year-old son Merrick doesn’t need to take 10 different medicines anymore. He can safely frolic on the playground among the germs that lurk there.

AP - The popular diabetes drug marketed as Avandia may increase bone thinning, a discovery that could help explain why diabetics can have an increased risk of fractures.

AP - Federal health officials are revising their estimate of how many people are infected by HIV each year, and advocacy groups say the number could rise by 35 percent or more.

AP - Those lords-a-leeping and ladies dancing may want to consider the downside of the holidays: Heart attack season has arrived.