Incidence and Secondary Transmission of SARS-CoV-2 Infections in Schools
Incidence and Secondary Transmission of SARS-CoV-2 Infections in Schools
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DOI：
10.1542/peds.2020-048090
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发表时间：
2021-04-01
期刊：
影响因子：
8
通讯作者：
Benjamin, Daniel K., Jr.
中科院分区：
文献类型：
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作者：
Zimmerman, Kanecia O.;Akinboyo, Ibukunoluwa C.;Benjamin, Daniel K., Jr.
背景：为了减轻严重急性呼吸综合征冠状病毒 2 (SARS-CoV-2) 的传播，北卡罗来纳州于 2020 年 3 月 14 日关闭了幼儿园至 12 年级公立学校的面授教学。2020 年 7 月 15 日，北卡罗来纳州州长宣布学校可以通过远程学习或面授和远程教学相结合的混合模式开放。 2020 年 8 月，北卡罗来纳州 115 个学区中的 56 个学区加入了 ABC 科学合作组织 (ABC)，以实施公共卫生措施，防止 SARS-CoV-2 传播并分享经验教训。我们描述了 2020-2021 学年面授教学前 9 周内 SARS-CoV-2 在参与学区内的二次传播。方法：从 2020 年 8 月 15 日到 2020 年 10 月 23 日，参与 ABC 的 56 个学区中有 11 个在第一季度的全部 9 周内开放面对面教学，并同意跟踪 SARS-CoV-2 的发病率和二次传播。当地卫生部门工作人员判定为二次传播。负责人每周与 ABC 教员会面，分享经验教训并制定预防方法。结果：在 9 周内，11 个参与学区有超过 90,000 名学生和教职员工亲自到校上课。在这些学生和教职员工中，通过分子检测记录了 773 例社区获得性 SARS-CoV-2 感染。通过接触者追踪，卫生部门工作人员确定另外 32 例感染是在学校内传播的。学校内尚未报告 SARS-CoV-2 儿童向成人传播的病例。结论：根据接触者追踪确定，在北卡罗来纳州学校面对面教学的前 9 周，我们发现 SARS-CoV-2 校内二次传播极其有限。根据接触者追踪确定，在北卡罗来纳州学校面对面教学的前 9 周，我们发现 SARS-CoV-2 校内二次传播极其有限。
BACKGROUND: In an effort to mitigate the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), North Carolina closed prekindergarten through grade 12 public schools to in-person instruction on March 14, 2020. On July 15, 2020, North Carolina's governor announced schools could open via remote learning or a hybrid model that combined in-person and remote instruction. In August 2020, 56 of 115 North Carolina school districts joined The ABC Science Collaborative (ABCs) to implement public health measures to prevent SARS-CoV-2 transmission and share lessons learned. We describe secondary transmission of SARS-CoV-2 within participating school districts during the first 9 weeks of in-person instruction in the 2020-2021 academic year. METHODS: From August 15, 2020 to October 23, 2020, 11 of 56 school districts participating in ABCs were open for in-person instruction for all 9 weeks of the first quarter and agreed to track incidence and secondary transmission of SARS-CoV-2. Local health department staff adjudicated secondary transmission. Superintendents met weekly with ABCs faculty to share lessons learned and develop prevention methods. RESULTS: Over 9 weeks, 11 participating school districts had >90 000 students and staff attend school in person. Among these students and staff, 773 community-acquired SARS-CoV-2 infections were documented by molecular testing. Through contact tracing, health department staff determined an additional 32 infections were acquired within schools. No instances of child-to-adult transmission of SARS-CoV-2 were reported within schools. CONCLUSIONS: In the first 9 weeks of in-person instruction in North Carolina schools, we found extremely limited within-school secondary transmission of SARS-CoV-2, as determined by contact tracing.In the first 9 weeks of in-person instruction in North Carolina schools, we found extremely limited within-school secondary transmission of SARS-CoV-2, determined by contact tracing.