Details

Autor(en) / Beteiligte

• Dawson, Patrick
• Worrell, Mary Claire
• Malone, Sara
• Tinker, Sarah C
• Fritz, Stephanie
• Maricque, Brett
• Junaidi, Sadaf
• Purnell, Gemille
• Lai, Albert M
• Neidich, Julie A
• Lee, Justin S
• Orscheln, Rachel C
• Charney, Rachel
• Rebmann, Terri
• Mooney, Jon
• Yoon, Nancy
• Petit, Machelle
• Schmidt, Spring
• Grabeel, Jean
• Neill, Lee Ann
• Barrios, Lisa C
• Vallabhaneni, Snigdha
• Williams, Randall W
• Goddard, Clay
• Newland, Jason G
• Neatherlin, John C
• Salzer, Johanna S

Titel

Pilot Investigation of SARS-CoV-2 Secondary Transmission in Kindergarten Through Grade 12 Schools Implementing Mitigation Strategies - St. Louis County and City of Springfield, Missouri, December 2020

Ist Teil von

• MMWR. Morbidity and mortality weekly report, 2021-03, Vol.70 (12), p.449-455

Ort / Verlag

United States: U.S. Government Printing Office

Erscheinungsjahr

2021

Link zum Volltext

Quelle

MEDLINE

Beschreibungen/Notizen

• Many kindergarten through grade 12 (K-12) schools offering in-person learning have adopted strategies to limit the spread of SARS-CoV-2, the virus that causes COVID-19 (1). These measures include mandating use of face masks, physical distancing in classrooms, increasing ventilation with outdoor air, identification of close contacts,* and following CDC isolation and quarantine guidance (2). A 2-week pilot investigation was conducted to investigate occurrences of SARS-CoV-2 secondary transmission in K-12 schools in the city of Springfield, Missouri, and in St. Louis County, Missouri, during December 7-18, 2020. Schools in both locations implemented COVID-19 mitigation strategies; however, Springfield implemented a modified quarantine policy permitting student close contacts aged ≤18 years who had school-associated contact with a person with COVID-19 and met masking requirements during their exposure to continue in-person learning. Participating students, teachers, and staff members with COVID-19 (37) from 22 schools and their school-based close contacts (contacts) (156) were interviewed, and contacts were offered SARS-CoV-2 testing. Among 102 school-based contacts who received testing, two (2%) had positive test results indicating probable school-based SARS-CoV-2 secondary transmission. Both contacts were in Springfield and did not meet criteria to participate in the modified quarantine. In Springfield, 42 student contacts were permitted to continue in-person learning under the modified quarantine; among the 30 who were interviewed, 21 were tested, and none received a positive test result. Despite high community transmission, SARS-CoV-2 transmission in schools implementing COVID-19 mitigation strategies was lower than that in the community. Until additional data are available, K-12 schools should continue implementing CDC-recommended mitigation measures (2) and follow CDC isolation and quarantine guidance to minimize secondary transmission in schools offering in-person learning.