Nonpharmaceutical interventions (NPIs) for SARS-CoV-2 disrupted circulation of influenza. We used data from 13 African countries and generalized linear models to identify associations between levels of NPIs, using the Oxford Stringency Index, and seasonal influenza activity, using parameters derived from 2020–2022 seasonal influenza surveillance. We found that for each step increase in school closings, the average percentage of respiratory specimens testing positive for influenza across the influenza season dropped by 20% (95% CI: 1–38%); no other NPI was significant. These findings may inform interventions to slow influenza circulation in pandemics and possibly during seasonal epidemics.

中文翻译：

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2020-2022 年 13 个非洲国家 COVID-19 大流行期间非药物干预措施对流感传播的量化影响

针对 SARS-CoV-2 的非药物干预措施 (NPI) 扰乱了流感的传播。我们使用来自 13 个非洲国家的数据和广义线性模型来确定 NPI 水平（使用牛津严格指数）与季节性流感活动（使用从 2020-2022 年季节性流感监测得出的参数）之间的关联。我们发现，学校停课时间每增加一步，整个流感季节呼吸道样本流感检测呈阳性的平均百分比就会下降 20%（95% CI：1-38%）；没有其他显着的 NPI。这些发现可能为在大流行期间以及可能在季节性流行期间减缓流感传播的干预措施提供信息。