Immunizations for Adults and Seniors.

Center for Disease Control, California suggests three immunizations for adults.  After age 50 it suggests an annual influenza shot.  Even if you have no previous issues with the flu, as our immune system grays we need additional protection.
Immunization for pneumonia is suggested after 65 years of age.  This is generally a once a life time immunization.  It is also recommended for those with chronic health conditions.
Lastly tetanus is important for those over 50.  This immunization should not be administered more than every ten years, unless you have sustained an injury.
It is important to keep a record of all you immunizations.  The timing for some is dependent on when you last received a shot.