Nosocomial COVID-19 Incidence and Secondary Attack Rates among Patients of Tertiary Care Center, Zurich, Switzerland.

Aline Wolfensberger,Verena Kufner,Maryam Zaheri,Marius Zeeb,Isabelle Nortes,Peter W Schreiber,Miriam Vazquez,Verena Schärer,Thomas Scheier,Stefan Schmutz, Elisabeth Probst,Dirk Saleschus,Michael Huber,Silvana K Rampini,Walter Zingg

Emerging infectious diseases（2022）

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摘要

Of 1,118 patients with COVID-19 at a university hospital in Switzerland during October 2020-June 2021, we found 83 (7.4%) had probable or definite healthcare-associated COVID-19. After in-hospital exposure, we estimated secondary attack rate at 23.3%. Transmission was associated with longer contact times and with lower cycle threshold values among index patients.

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关键词

COVID-19,SARS-COV-2,Switzerland,coronavirus disease,cross-infection,infection control,infectious disease transmission,nosocomial infections,risk factors,severe acute respiratory syndrome coronavirus 2,viruses,zoonoses

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