As the US enters the third year of the global coronavirus pandemic, vaccination remains the most effective tool against infections and symptomatic illness. Layered on other public health mitigation tools such as testing and masks, vaccination is central to a larger strategy of control and management of COVID-19 as the pandemic shifts toward endemicity. However, emergence of new variants of concern, vaccine hesitancy, and barriers to global vaccine equity have created challenges to containing the pandemic.

中文翻译：

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在 Omicron 时代加强疫苗接种以预防 COVID-19

随着美国进入全球冠状病毒大流行的第三个年头，疫苗接种仍然是对抗感染和症状性疾病的最有效工具。随着大流行向地方性转变，疫苗接种在其他公共卫生缓解工具（如检测和口罩）的基础上，是更大的 COVID-19 控制和管理战略的核心。然而，令人担忧的新变种的出现、疫苗犹豫以及全球疫苗公平的障碍给遏制大流行带来了挑战。