Central Regional Referral Hospital, Gelegphu, Bhutan.
Jigme Dorji Wangchuck National Referral Hospital, Thimphu, Bhutan; Kidu Mobile Medical Unit, His Majesty's People's Project, Thimphu, Bhutan.
Vaccine. 2022 May 20;40(23):3089-3092. doi: 10.1016/j.vaccine.2022.04.059. Epub 2022 Apr 22.
Bhutan - a landlocked least developed country in the Himalayas - vaccinated 94% of its adults with the first dose of COVID-19 vaccine in March-April 2021, 90.2% with second dose in July 2021, and 89.1% with booster (third) dose by March 2022. The country used COVISHIELD (Oxford-Astrazeneca) vaccine for the first dose but decided to pursue a heterologous prime-boost strategy ("mix-and-match") for the second dose using Moderna's mRNA vaccine for adults. Bhutan rapidly rolled out Pfizer and Moderna vaccines for 12 to 17-year-olds through a school-based vaccination strategy followed by booster doses: 78.6% of adolescents aged 12-17 years were vaccinated with the first dose by August 2021, 92.8% with second dose by November 2021, and 79.7% with booster (third) dose by March 2022. More than 97% of children aged 5 to 11 years have received Pfizer's Comirnaty vaccine for their first dose. Bhutan is steadily vaccinating its population and might soon become one of the few least developed countries to achieve herd immunity-level vaccination coverage with more than 80% of its population fully vaccinated.
不丹是喜马拉雅山脉中的一个内陆最不发达国家，于 2021 年 3 月至 4 月为 94%的成年人接种了第一剂 COVID-19 疫苗，7 月 2021 年为 90.2%接种了第二剂，2022 年 3 月前为 89.1%接种了加强（第三剂）。该国最初使用 COVISHIELD（阿斯利康）疫苗接种第一剂，但决定在第二剂中采用 Moderna 的 mRNA 疫苗接种异源加强策略（“混合和匹配”）。不丹通过基于学校的疫苗接种策略迅速为 12 至 17 岁的青少年推出辉瑞和 Moderna 疫苗，并随后接种加强针：到 2021 年 8 月，78.6%的 12-17 岁青少年接种了第一剂，92.8%接种了第二剂，2022 年 3 月前 79.7%接种了加强（第三剂）。超过 97%的 5 至 11 岁儿童接种了辉瑞的 Comirnaty 疫苗作为第一剂。不丹正在稳步为其人口接种疫苗，可能很快成为少数几个通过 80%以上人口完全接种疫苗来实现群体免疫水平接种覆盖率的最不发达国家之一。
