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.

The 11 COVID-19 vaccines that are listed for emergency use by WHO are Pfizer-BioNTech (COMIRNATY), Moderna (Spikevax), Janssen/J&J, AstraZeneca (Vaxzevria),Serum Institute of India (COVISHIELD), BIBP/Sinopharm, Sinovac (CoronaVac), Bharat Biotech (COVAXIN), Serum Institute of India (COVOVAX), Novavax (NUVAXOVID), and CanSino (Convidecia).