March 18, 2005

Taking Aim at Bird Flu

By LILA GUTERMAN

Researchers try to prepare the world for a possible pandemic

Table: Countries that had bird flu outbreaks only among animals, and those with outbreaks among humans

Flu season may be winding down in the United States, but public-health officials are more concerned than ever about influenza. That's because a strain of bird flu has emerged in Asia that could become humanity's worst enemy.

The virus has already killed legions of chickens and is starting to spread to people. So

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