The World Health Organization says about 500,000 people die every year from seasonal flu. To combat that, doctors recommend getting a flu vaccine at the beginning of each flu season and researchers are now working on a universal vaccine that could pr...
By Cathryn Curtis Washington, DC 16 March 2006 watch Bird Flu Mutations report Swabing inside of mouth of bird As the threat of bird flu spreads around the world, the big question on the minds of scie...