The Central Epidemic Command Center (CECC) announced that the COVID-19 vaccination reservation system （https://1922.gov.tw/） will be open for scheduling booster dose appointments starting February 16 in order to provide multiple options for the public to schedule an appointment and thus, allow the public to gain protection more quickly. In the 23rd round, booster shots will be offered to individuals aged 18 or older who have received two doses of a COVID-19 vaccine for 12 weeks. This round of vaccinations will take place from February 21 to 27, 2022.