World Health Organization Recommends H1N1 Virus be Added to 2010-2011 Flu Vaccine

The H1N1 virus should be included in the 2010-2011 flu season -- northern hemisphere -- vaccine, World Health Organization officials in Switzerland said.

Flu vaccine makers anxiously await the decision, scheduled to be announced at 5 a.m. EST/1000 GMT, because they need this guidance to start formulating vaccines for the Northern Hemisphere's fall vaccine mix.

The decision is more complicated this year because of the pandemic of H1N1 swine flu. Although the pandemic is on the wane, the virus is still infecting and killing people.