The bird flu detected in Nigeria last month is a new strain of the deadly H5N1 virus that has not been recorded in Africa previously.

Laboratory tests from Nigeria and the Food and Agriculture Organization (FAO) in Italy found the virus from "backyard poultry" in Katsina and Kano states to be an H5N1, clade 2, EMA3

The U.S. Food and Drug Administration (FDA) has approved an AIDS drug made by Gilead to treat patients with hepatitis B. The drug Viread has been available in the U.S. as a treatment for HIV infection in adults since 2001.

The FDA is joining regulators in Europe, Turkey, Australia and New Zealand by allowing the drug in U.S. Generically known as tenofovir, the drug is taken in the form of a pill once daily. It works by blocking HBV DNA polymerase, the enzyme that is necessary for the virus to replicate in liver cells

Whole Foods Market has announced a voluntary beef recall Friday because of concerns the meat might be contaminated with E. coli bacteria. The beef was sold between June 2 and Aug. 6 and was processed at Nebraska Beef plant, said a company spokesperson.

Health authorities have confirmed seven cases of E. coli infection linked to ground beef, all involving people who bought beef from Whole Foods. Five of those people have been hospitalized

The life-threatening disease of AIDS might be preventable and curable by 2031, the head of U.S. infectious disease research said Thursday.

Aggressive treatment of HIV infection shortly after infection has made it possible to live symptom-free without medicines for HIV patients

German researchers have developed a new procedure for kidney transplant patients that replaces anti-rejection drugs with infection-fighting white cells. The procedure boosts immune cells that guard against rejection and eliminates drug side effects.

A team, led by Professor Fred Fandrich from the University of Schleswig-Holstein in Kiel, Germany, developed a procedure to remove infection-fighting white cells from the blood of a kidney transplant recipient and subject them to a highly complex procedure in which cells are taken from a living or deceased donor