How do I know when I need a vaccine?

Shot record. The cdc has a good site with immunization recommendations for various situations. The recommendations for an adult are at: http://www. Cdc. Gov/vaccines/schedules/easy-to-read/adult. Html compare your immunization history to this set of recommendations. If you are traveling to another country, you may want to review recommendations for travel to that country.
Ask the doctor. A patient should bring his vaccine record in for his doctor to review. The doctor can recommend the needed vaccines, if the patient is missing some vaccines or booster shots. The doctor can also discussed optional vaccines, such as typhoid vaccine for travelers to developing countries.