The recommendations for people vaccinated outside of the United States depend on the vaccine(s) received for the primary series, whether the primary series was completed, and whether a booster dose was received
People who initiated vaccination outside of the United States are considered to be up to date with their COVID-19 vaccines when they have completed the recommended actions described in CDC interim guidance for people who received COVID-19 vaccine outside the United States.
Students who completed a WHO-EUL COVID-19 vaccine series, and then got a WHO-EUL vaccine as a booster should not repeat the booster dose according to the CDC.
Updated April 20, 2022
