Eurosurv. Secondary transmission of COVID-19 in preschool and school settings in northern Italy after their reopening in September 2020: a population-

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Secondary transmission of COVID-19 in preschool and school settings in northern Italy after their reopening in September 2020: a population-based study

• Elisabetta Larosa[SUP]1[/SUP] , Olivera Djuric[SUP]2,3[/SUP] , Mariateresa Cassinadri[SUP]1[/SUP] , Silvia Cilloni[SUP]1[/SUP] , Eufemia Bisaccia[SUP]1[/SUP] , Massimo Vicentini[SUP]2[/SUP] , Francesco Venturelli[SUP]1,4[/SUP] , Paolo Giorgi Rossi[SUP]2[/SUP] , Patrizio Pezzotti[SUP]5[/SUP] , Emanuela Bedeschi[SUP]1[/SUP] , the Reggio Emilia Covid-19 Working Group[SUP]6[/SUP]

We report epidemiological investigations of transmission of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in 41 classes of 36 schools in Reggio Emilia province, northern Italy, from their reopening on 1 September to 15 October 2020. The overall secondary case attack rate was 3.2%, reaching 6.6% in middle and high schools. More timely isolation and testing of classmates could be effective in reducing virus transmission in this setting.


[SUP]full article[/SUP]
https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2020.25.49.2001911