The CDC recommends that all people between the ages of 6 months and 24 years receive Novel H1N1 Influenza vaccine. It is also indicated for people who live with or care for children younger than 6 months and all pregnant women regardless of trimester. For more information check the CDC website at www.cdc.gov/H1N1FLU/.  For both 2010 and 2011, the H1N1 vaccine is included in the seasonal influenza vaccine, and does not require a separate vaccine.