Scientists claim they have found a new strain of avian flu, the H9N2 virus, which could mutate to become more easily transmissible among humans and trigger a possible bird flu pandemic.

According to a study published in the Public Library of Science journal PLoS ONE, the avian influenza strain found in Nigeria is genetically different from previous African outbreaks

What do all victorious Olympians have in common? The victorious gestures that vary from fist-pumping and chest-puffing to raising their arms in a victory salute.

A new study has found that all these victory gestures are innate and biological rather than learned responses to success and failure. So is the reaction to defeat and failure that is marked by slumped shoulders

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

For some people the first puff of smoke they tried felt repulsive while for others those puffs came with a rush of pleasure. Researchers have identified a gene variant that may help explain why some smokers get addicted from their first cigarette while others seem immune to the addictive properties of tobacco.

The paper published online in the journal Addiction reports an association between a variant in the nicotine receptor gene CHRNA5, initial smoking experiences and current smoking patterns. This gene is far more common among smokers than in those who have the occasional cigarette

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