The Food and Drug Administration (FDA) of US has approved flu vaccine for current season. The vaccine will have three strains of the flu virus such one A (H3N2) virus, one A (H1N1) virus, and one B virus. The World Health Organization (WHO), the US Centers for Disease Control and Prevention (CDC), the FDA and other institutions have anticipated that the seasonal flu can be more vigor in this season.

Flu season in US starts in the month of October and November is the best time for vaccination.

The director of FDA's Center for Biologics Evaluation and Research, Dr. Jesse L Goodman said that flu influenza is only disease in US for which vaccines are made every year. The FDA has short listed the following six companies to manufacture the vaccine:

    CSL Limited, Afluria.

    GlaxoSmithKline Biologicals, Fluarix.

    ID Biomedical Corporation of Quebec, FluLaval.

    MedImmune Vaccines Inc., FluMist.

    Novartis Vaccines and Diagnostics Limited, Fluvirin.

    Sanofi Pasteur Inc., Fluzone.
 
It is believed that vaccine for the year 2007-2008 was not effective. That’s the reason why, the FDA has changed all three vaccine for that season. Influenza is a major repertory disease in US. It is caused by a virus which claims life of 5 and 20 per cent people in US. About 36,000 die every year from flu-related diseases. The young children, elders and people with chronic conditions are the main victim of influenza.