Basic epidemiological data is urgently needed in order to ascertain the changes brought about by COVID-19 pandemic, and help researchers, clinicians, and policy makers in addressing these issues. Data on influenza positivity from 2009 to 2019 was collected from Regional Influenza laboratory, JIPMER. Being COVID testing centre we tested samples (2020–2023) from Tamilnadu and Pondicherry. All SARI samples which were negative for COVID-19 were subjected to Influenza testing as regular surveillance activity was suspended. On comparison we found significant reduction in detection rates of influenza A H1N1, H3N2 and influenza B (p value = <0.01).

中文翻译：

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COVID-19 对印度南部季节性流感活动的影响

为了确定 COVID-19 大流行带来的变化，并帮助研究人员、临床医生和政策制定者解决这些问题，迫切需要基础流行病学数据。 2009 年至 2019 年流感阳性数据收集自区域流感实验室 JIPMER。作为新冠病毒检测中心，我们检测了来自泰米尔纳德邦和本地治里的样本（2020-2023 年）。由于定期监测活动已暂停，因此所有 SARI 样本中的 COVID-19 呈阴性均接受了流感检测。通过比较，我们发现甲型 H1N1、H3N2 和乙型流感的检出率显着降低（p 值 = <0.01）。