Vaccination schedule

Who develops the recommended vaccine schedule?

The Centers for Disease Control and Prevention sets the U.S. childhood immunization schedule based on recommendations from the Advisory Committee on Immunization Practices (ACIP) — a group of medical and public health experts. This schedule also is approved by some of...

Why are combination shots used?

Combination vaccines take two or more vaccines that could be given individually and put them into one shot. Children get the same protection as they do from individual vaccines given separately—but with fewer shots. At a doctor’s visit, your child may only get two or...

Why are so many doses needed for each vaccine?

One dose of a vaccine is not enough to protect a child against some diseases. Depending on the vaccine and the disease, more than one dose is needed to build high enough immunity to prevent the disease, boost immunity that fades over time, make sure people who did not...

Why do vaccines start so early?

Young children—even newborns—begin vaccinations early in life to protect them from serious and deadly diseases that can infect them at a very young age. The effects of these diseases can be very serious, and even life-threatening, for infants and young children who...