Child Immunization Schedule Calculator

The first vaccine (Hepatitis B, Dose 1) is given at birth, typically before you leave the hospital. The next round of vaccines is at 2 months and includes five vaccines that protect against six diseases: DTaP, Hib, IPV, PCV, and Rotavirus. These early vaccines are critical because many serious infections, like whooping cough and meningitis, are most dangerous in young infants.

Yes. The ACIP schedule is carefully designed to give vaccines at the ages when they're most effective and when children are most vulnerable to the diseases they prevent. Multiple vaccines at one visit are studied extensively for safety. Your baby's immune system is capable of handling far more antigens than vaccines contain — every day your baby encounters thousands of germs through normal activities.

Don't panic. Most vaccines can be caught up. The CDC maintains official catch-up immunization schedules for children who started late or fell behind. Talk to your pediatrician — they will create a catch-up plan. Some vaccines (like rotavirus) do have age cutoffs, but most can be administered over a wider window.

The ACIP schedule is designed to provide protection as early as possible, when children are most at risk. There is no proven benefit to delaying or spreading vaccines, and it leaves children vulnerable to preventable diseases for longer. Alternative schedules are not recommended by the AAP, CDC, or WHO. Discuss any specific concerns with your pediatrician.

No. This claim originated from a single fraudulent 1998 study that was later retracted and whose author lost his medical license. Dozens of large, rigorously designed studies involving millions of children have found absolutely no link between any vaccine and autism. The original study was thoroughly discredited.

Requirements vary by state and country, but most US states require: DTaP, IPV, MMR, Varicella, and Hepatitis B before starting school. Some states also require Hib, Hepatitis A, and meningococcal vaccines. Check your state health department's website for specific requirements. Students entering 7th grade typically need a Tdap booster before starting middle school.