Not so. Many vaccine have 2 or 3 primary doses. Definitely the ones an infant gets. I got multiple Hepatitis vax to develop full immunity. Tetanus requires boosters.
— Noodle McNoodleface (@vanoodle12) December 9, 2021
Discovered on December 9, 2021
Source vanoodle12: @PhilaniReloaded @miamalan @SAHPRA1 Not so. Many vaccine have 2 or 3 primary doses. Definitely the ones an infant gets. I got multiple Hepatitis vax to develop full immunity. Tetanus requires boosters.