If you're in currently in college, as part of the requirement for admission, you are probably current with all your immunizations required for the U.S. If you're not in college, you'll want to review your records and consider getting any boosters -- even before you finalize your travel plans.

So, first step is having a copy of these records in a safe, but handy location.

Finally, for travel to certain parts of the world, you should know that you may be required to get additional immunizations before you can enter various countries.