14 October 2021. Yunnan province in Southwest China began administering COVID-19 booster shots this week, with a focus on border residents and tourism workers. Yunnan, which borders Myanmar, Laos and Vietnam, has battled several local outbreaks this year triggered by imported cases.https://www.chinadaily.com.cn/a/202110/14/WS61676b93a310cdd39bc6ec2b.html