Virus | featured news

A malicious software program known as Conficker that many feared would wreak havoc on April 1 is slowly being activated, weeks after being dismissed as a false alarm, security experts said.

Health officials around the world worked to contain what appears to be a spreading swine flu outbreak early Monday, while one out of every five residents of Mexico's most populous city wore masks to protect themselves against the virus.

Researchers have solved the first step in treating the common cold, by mapping its entire genome, or genetic map, teams from the University of Maryland and the University of Wisconsin-Madison reported Thursday.