Children do not receive any known benefits from following schedules that delay vaccines.

Infants and young children who follow immunization schedules that spread out shots-or leave out shots-are at risk of developing diseases during the time that shots are delayed.

Some vaccine-preventable diseases remain common in the United States, and children may be exposed to these diseases during the time they are not protected by vaccines, placing them at risk for a serious case of the disease that might cause hospitalization or death.