Surveillance, contact tracing and characteristics of SARS-CoV-2 transmission in educational settings in Northern Italy, September 2020 to April 2021.

Olivera Djuric,Elisabetta Larosa, Mariateresa Cassinadri, Silvia Cilloni,Eufemia Bisaccia,Davide Pepe,Massimo Vicentini,Francesco Venturelli,Laura Bonvicini,Paolo Giorgi Rossi,Patrizio Pezzotti,Alberto Mateo Urdiales,Emanuela Bedeschi

PloS one（2022）

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摘要

Despite the spread of the Alpha variant during the study period in RE, the secondary case attack rate remained stable from school reopening in September 2020 until the beginning of April 2021.

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关键词

surveillance,contact tracing,sars-cov

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