Although flu activity has declined in recent weeks, 2009 H1N1 Influenza viruses continue to spread in the United States and abroad, causing illness, hospitalizations and even deaths.
As of 28 February 2010, worldwide more than 213 countries and overseas territories or communities have reported laboratory confirmed cases of pandemic influenza H1N1 2009, including at least 16455 deaths.
Estimating the number of individual flu cases in the United States is very challenging because many people with flu don't seek medical care and only a small number of those that do seek care are tested.
The U.S. Food and Drug Administration today issued final guidance to help manufacturers who are developing safe and effective cell-based viral vaccines to address emerging and pandemic threats.
As of 21 February 2010, worldwide more than 213 countries and overseas territories or communities have reported laboratory confirmed cases of pandemic influenza H1N1 2009, including at least 16226 deaths.
A panel of immunization experts voted today (February 24, 2010) to expand the recommendation for annual influenza vaccination to include all people aged 6 months and older.