The emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its associated disease, COVID-19, has demonstrated the devastating impact of a novel, infectious pathogen on a susceptible population. Here, we explain the basic concepts of herd immunity and discuss its implications in the context of COVID-19.

中文翻译：

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牛群免疫：了解COVID-19。

严重急性呼吸系统综合症冠状病毒2（SARS-CoV-2）及其相关疾病COVID-19的出现证明了新型传染性病原体对易感人群的毁灭性影响。在这里，我们解释了群体免疫的基本概念，并讨论了其在COVID-19中的含义。