Table 2 Contingency table on the impact of masksa on SARS-CoV-2 transmission.

From: SARS-CoV-2 transmission during an indoor professional sporting event

Group

Neg SARS-CoV-2

Pos SARS-CoV-2

Mask

14

12

No mask

5

24

  1. aMedical face masks (community masks and/or surgical masks) or particle filter masks (FFP2, FFP3, KN95).
Back to article page