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Table 3 Absolute risk of laboratory-confirmed influenza infection in healthcare workers by the type of mask worn

From: Risk of SARS-CoV-2 transmission by aerosols, the rational use of masks, and protection of healthcare workers from COVID-19

Study Included Patients (n) Randomization Incidence of laboratory-confirmed influenza infection
Mask Respirator
Loeb, 2009 [52] 446 Individual 22.2% 21.7%
MacIntyre, 2011 [53] 1441 Cluster 1.2% 0.4%
MacIntyre, 2013 [43] 1669 Cluster 0.3% 0.5%
Radanovich, 2019 [54] 2862 Cluster 7.3% 8.3%
  1. Adapted from Bartasko et al. [45]
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Antimicrobial Resistance & Infection Control

ISSN: 2047-2994

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