PHBRIEFS

Influenza Activity Increasing

Influenza activity in US is increasing, but still remains relatively low. The assessment comes from CDC's FluView report for the week ending Dec. 31, 2011. That makes this the ideal time to get vaccinated. There are early indications that flu season may be getting underway. Three regions of the country report elevated levels of influenza-like illness and more states and territories reported greater geographical spread of influenza. It is too early in the flu season to determine how well the seasonal flu vaccine and circulating influenza viruses will match. However, most of the seasonal influenza viruses that have been submitted
for characterization so far are well-matched to the 2011-2012 influenza vaccine. FluView is available at http://www.cdc.gov/flu/weekly/

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