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Mar 09
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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.
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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.
This is a letter developed jointly by the American College Health Association (ACHA) and CDC intended for distribution to colleges and universities across the country prior to Spring Break. The message to students is: Don't let influenza spoil your plans for Spring Break. Take the opportunity to get vaccinated before leaving for Spring Break and protect yourself, friends and family against 2009 H1N1 flu.
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.
This report provides an update to the international situation as of February 27, 2010. The World Health Organization (WHO) continues to report updated 2009 H1N1 flu-associated laboratory-confirmed cases and deaths on its Web page.
During week 8 (February 21-27, 2010), influenza activity remained at approximately the same levels as last week in the U.S. 263 (6.4%) specimens tested by U.S. World Health Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories and reported to CDC/Influenza Division were positive for influenza.
FluView reports that for the week of February 21 - February 27, 2010, flu activity in the United States was relatively low, with most flu continuing to be caused by 2009 H1N1. Flu activity, caused by either 2009 H1N1 or seasonal flu viruses, may rise and fall, but is expected to continue for weeks. It's possible that the United States could experience another wave of flu activity caused by either 2009 H1N1 or seasonal influenza.
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.
Graphical representations of CDC's latest estimates for 2009 H1N1 cases, hospitalizations and deaths in the United States, April 2009 - January 16, 2010.
Un modérateur a ajouté "Evolutionary pattern of pandemic influenza (H1N1) 2009 virus in the late phases of the 2009 pandemic." à la collection : "PLoS Currents: Influenza"
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