Polio: 4 doses (3 doses are acceptable if the last dose was given on or after the 4th birthday).
DTaP/DT/Tdap/Td: 5 doses of diphtheria, tetanus, and pertussis vaccine (4 doses are acceptable if the final dose was on or after the 4th birthday; 3 doses if given on or after the 7th birthday).
MMR: 2 doses of measles, mumps, and rubella vaccine, both given on or after the 1st birthday.