Division of Global Migration and Quarantine (Drs Joo and Maskery), COVID-19 Response Team (Ms Howard-Williams, Messrs McCord and Sunshine, and Dr Fuller), Public Health Law Program (Messrs McCord and Sunshine), and Division of Global Health Protection (Dr Fuller), Centers for Disease Control and Prevention, Atlanta, Georgia.
J Public Health Manag Pract. 2022;28(5):491-495. doi: 10.1097/PHH.0000000000001564.
Trends in the percentages of the US population covered by state-issued nonpharmaceutical interventions (NPIs), including restaurant and bar restrictions, stay-at-home orders, gathering limits, and mask mandates, were examined by using county-specific data sets on state-issued orders for NPIs from March 1, 2020, to August 15, 2021. Most of the population was covered by multiple NPIs early in the pandemic. Most state-issued orders were lifted or relaxed as COVID-19 cases decreased during summer 2020. Few states reimplemented strict NPIs during later surges in US COVID-19 cases over the winter of 2020-2021. The exceptions were mask mandates, which covered about 80% of the population between August 2020 and February 2021, and the most restrictive gathering limits, which covered a maximum of 66% of the population in early 2020 and 68% of the population in winter 2020-2021. Most NPIs were lifted by the end of the analysis period.
从 2020 年 3 月 1 日至 2021 年 8 月 15 日，利用县一级关于国家颁布的非药物干预措施（NPI）的具体命令数据集，研究了美国人口中受州颁布的非药物干预措施（包括餐馆和酒吧限制、居家令、聚会限制和口罩强制令）覆盖的百分比趋势。在大流行早期，大多数人口受到多种 NPI 的覆盖。随着 2020 年夏季 COVID-19 病例的减少，大多数州颁布的命令被取消或放宽。在 2020-2021 年冬季美国 COVID-19 病例的后期激增期间，很少有州重新实施严格的 NPI。例外情况是口罩强制令，该命令在 2020 年 8 月至 2021 年 2 月期间覆盖了约 80%的人口，以及最严格的聚会限制，在 2020 年初最多覆盖了 66%的人口，在 2020-2021 年冬季覆盖了 68%的人口。到分析期末，大多数 NPI 都已取消。
