Bird Flu > Bird Flu News > Experts Worry About Combo Flu (FOX News Chicago)

Experts Worry About Combo Flu (FOX News Chicago)
Some top experts are worried that a mix of old and new flu could become lethal -- if it happens. Bird flu kills more than 60 percent of its human victims, but doesn't easily pass from person to person. Swine flu can be spread with a sneeze or handshake, but kills only a small fraction of the people it infects.