Can the seasonal flu vaccine and the H1N1 vaccine be given at the same time?
The CDC anticipates that seasonal flu and 2009 H1N1 vaccines may be administered on the same day. However, you can expect the seasonal vaccine to be available earlier than the H1N1 vaccine. The usual seasonal influenza viruses are still expected to cause illness this fall and winter. Individuals are encouraged to get their seasonal flu vaccine as soon as it is available.