Three carefully documented cases of SARS-CoV-2 transmission in a hospital setting despite masks

Simon Collins, HIV i-Base

Three cases of SARS-CoV-2 occurring between health workers and patients are reported in the journal CID, that are also supported with phylogenetic analysis.

In all cases, masks and protective eye coverings were used.

This study shows the difficulty of achieving 100% protection.

It also reinforces the commitment of health workers who continue to focus on patient care, despite personal risk


Michael Klompas M et al. Transmission of SARS-CoV-2 from asymptomatic and presymptomatic individuals in healthcare settings despite medical masks and eye protection. Clinical Infectious Diseases, ciab218, (11 March 2021).

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