According to the CDC, National Influenza Vaccination Week is December 5-11, 2010.
CDC recommends a yearly flu vaccine as the first and most important step in protecting against flu viruses. The 2010-2011 flu vaccine will protect against an influenza A H3N2 virus, an influenza B virus and the 2009 H1N1 virus that caused so much illness last season.
5 to 20 percent of the population get the flu.
The peak of flu season has occurred anywhere from late November through March.
Visit flu.gov for more for more statistics and information on flu prevention and treatment.