The COVID-19 pandemic continued to rage in 2021, but this was increasingly an unequal pandemic, with rich countries receiving millions of doses of vaccine and ending lockdowns and travel bans. It was also a year when policymakers started to prepare for the next inevitable pandemic.

中文翻译：

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COVID-19 事件时间表

COVID-19 大流行在 2021 年继续肆虐，但这越来越不平等，富裕国家收到了数百万剂疫苗，并结束了封锁和旅行禁令。也是决策者开始为下一次不可避免的大流行做准备的一年。