The vaccine schedule in the USA is INSANE~!
Birth: BCG, Hep B1, OPV
2 months: DTaP, Hib, IPV, PCV, RV
4 months: DTaP, Hib, IPV, PCV, RV
6 months: DTaP, Hib, PCV, RV
12 months: At least one dose of the current COVID-19 vaccine
15–17 months: 3 Polio, 3 DTaP, 2 Hep B, 1 Varicella
18 months through 5 years: 3 Polio, 4 DTaP, 3 Hep B, 1 Varicella