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2023 年中国儿科人群中 SARS-CoV-2 和流感的感染率和症状比例。

Infection Rates and Symptomatic Proportion of SARS-CoV-2 and Influenza in Pediatric Population, China, 2023.

出版信息

Emerg Infect Dis. 2024 Sep;30(9):1809-1818. doi: 10.3201/eid3009.240065. Epub 2024 Aug 6.

DOI:10.3201/eid3009.240065
PMID:39106459
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11347007/
Abstract

We conducted a longitudinal cohort study of SARS-CoV-2 and influenza rates in childcare centers and schools in Wuxi, China, collecting 1,760 environmental samples and 9,214 throat swabs from 593 students (regardless of symptoms) in weekly collections during February-June 2023. We estimated a cumulative infection rate of 124.8 (74 episodes)/1,000 persons for SARS-CoV-2 and 128.2 (76 episodes)/1,000 persons for influenza. The highest SARS-CoV-2 infection rate was in persons 18 years of age, and for influenza, in children 4 years of age. The asymptomatic proportion of SARS-CoV-2 was 59.6% and 66.7% for influenza; SARS-CoV-2 symptomatic proportion was lower in 16-18-year-olds than in 4-6-year-olds. Only samples from frequently touched surface tested positive for SARS-CoV-2 (4/1,052) and influenza (1/1,052). We found asynchronous circulation patterns of SARS-CoV-2 and influenza, similar to trends in national sentinel surveillance. The results support vaccination among pediatric populations and other interventions, such as environmental disinfection in educational settings.

摘要

我们在中国无锡的托儿所和学校中进行了一项 SARS-CoV-2 和流感发病率的纵向队列研究，在 2023 年 2 月至 6 月的每周采集中，共采集了 593 名学生（无论有无症状）的 1760 份环境样本和 9214 份咽喉拭子。我们估计 SARS-CoV-2 的累积感染率为 124.8（74 例）/1000 人，流感为 128.2（76 例）/1000 人。SARS-CoV-2 感染率最高的是 18 岁人群，而流感则是 4 岁儿童。SARS-CoV-2 的无症状比例为 59.6%，流感为 66.7%；SARS-CoV-2 的有症状比例在 16-18 岁人群中低于 4-6 岁人群。只有经常接触的表面样本中检测到 SARS-CoV-2（4/1052）和流感（1/1052）呈阳性。我们发现 SARS-CoV-2 和流感的循环模式不同步，与国家哨点监测的趋势相似。研究结果支持在儿科人群中接种疫苗和在教育环境中进行环境消毒等其他干预措施。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/420e/11347007/6ce0096bc8b5/24-0065-F3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/420e/11347007/1dd44dfb9cd6/24-0065-F1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/420e/11347007/003a79a4cfb4/24-0065-F2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/420e/11347007/6ce0096bc8b5/24-0065-F3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/420e/11347007/1dd44dfb9cd6/24-0065-F1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/420e/11347007/003a79a4cfb4/24-0065-F2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/420e/11347007/6ce0096bc8b5/24-0065-F3.jpg

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