> Before you depart the United States for Peace Corps, Invitees are required to have proof of immunity to, or vaccination against, the following diseases:
Measles, Mumps, Rubella (MMR) - Exempt if born in U.S. before January 1, 1957
Polio (childhood series plus booster after age 18 )
Tetanus (childhood series plus a current booster, not more than 7 years old)
Varicella (chicken pox) - Exempt if born in U.S. before January 1, 1980
These are vaccines you should have had as a child, or have immunity to because you had the diseases.