The adenovirus detection rate is <10% throughout the year in South Korea; however, during the summer of 2023, it showed an unusual increase. We analyzed the adenovirus detection rate using data from the Korea Respiratory Integrated Surveillance System before and after coronavirus disease (COVID-19) collected from 2019 to week 36 of 2023. Before the COVID-19 outbreak in 2019, the mean detection rate was 8.2%, which decreased to 6.1% during the COVID-19 pandemic from 2020 to 2022. In 2023, the mean detection rate was 14.3% in week 36 and the highest in week 34, at 42.2%, and adenovirus was predominantly detected in the summer. The detection rate by age group showed substantially high activity among 0-12-yr-olds after the pandemic. This age group had a steady mean rate of 9.5% during the pandemic, without seasonality. In 2023, the detection rate surged in the 0-6-yr and 7-12-yr age groups, peaking at 61.6% and 57.1%, respectively. The dominant epidemic serotypes were HAdV-1 and HAdV-2 during and HAdV-3 after the pandemic. The multifaceted non-pharmaceutical interventions during the COVID-19 pandemic considerably impacted the prevalence of common respiratory viruses and complicated respiratory virus patterns after the pandemic. Constant surveillance is crucial for epidemic preparedness to monitor the possible surge of certain respiratory viruses.

中文翻译：

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韩国 COVID-19 大流行后腺病毒活动增加的趋势：国家监测数据分析。


韩国全年腺病毒检出率为<10%；然而，在 2023 年夏季，这一数字出现了异常增长。我们使用韩国呼吸综合监测系统从 2019 年至 2023 年第 36 周收集的冠状病毒病（COVID-19）前后的数据分析了腺病毒检出率。2019 年 COVID-19 爆发之前，平均检出率为 8.2% ，2020年至2022年COVID-19大流行期间下降至6.1%。2023年，第36周的平均检出率为14.3%，第34周最高，为42.2%，腺病毒主要在夏季检出。按年龄组划分的检出率显示，大流行后 0-12 岁儿童的检出率明显较高。疫情期间，该年龄段的平均发病率稳定在 9.5%，无季节性。 2023年，0-6岁和7-12岁年龄组的检出率大幅上升，分别达到峰值61.6%和57.1%。流行期间的主要流行血清型是HAdV-1和HAdV-2，流行后的主要流行血清型是HAdV-3。 COVID-19大流行期间的多方面非药物干预措施极大地影响了大流行后常见呼吸道病毒和复杂呼吸道病毒模式的流行。持续监测对于流行病防范至关重要，以监测某些呼吸道病毒可能激增的情况。