Influenza

• Bird Flu Viruses Raise Mounting Concerns Among Scientists - Researchers are not just worried about the virus popping up on American farms. Other types are causing trouble around the world.
• Former F.D.A. Commissioners Sound Alarm on Plan to Change Vaccine Policy - Twelve former commissioners, in a New England Journal of Medicine article, said they were “deeply concerned” by a leaked memo from the agency’s vaccine regulator.