COVID-19 vaccine booster doses in Hong Kong 2021-2022
As of June 5, 2022, Hong Kong had administered about 4.18 million coronavirus COVID-19 vaccine booster doses, whereas about two billion doses of the boosters had been applied worldwide. The Hong Kong government started the booster roll-out for the general public at the beginning of 2022. As the Omicron variant brought another case surge in the financial hub, the government had shortened the deadline for residents aged 12 or above to get a third shot by May 31 instead of the end of June as originally planned.