[5] On 6 July 2021, it is reported that South Korea has signed a deal with Israel to borrow 700,000 expiring doses of the Pfizer-BioNTech's vaccine.

[5][6] On 29 November 2021, President Moon Jae-in urged the rapid administration of booster shots against COVID-19, in response to an increased number of severe cases and deaths following the easing of anti-virus rules.

[7] On 10 February 2021, South Korea granted its first approval of a COVID-19 vaccine to Oxford–AstraZeneca, allowing the two-shot regimen to be administered to all adults, including the elderly.

The approval came with a warning, however, that consideration is needed when administering the vaccine to individuals over 65 years of age due to limited data from that demographic in clinical trials.

The United States initially announced to donate 550,000 doses to South Korean troops working in close contact with American forces.