Journal of Infection, 17 April 2020
Vincent C.C. Cheng, Shuk-Ching Wong, Vivien W.M. Chuang, Simon Y.C. So, Jonathan H.K. Chen, Siddharth Sridhar, Kelvin K.W. To, Jasper F.W. Chan, Ivan F.N. Hung, Pak-Leung Ho, Kwok-Yung Yuen
- COVID-19 per-million-population in HKSAR with community-wide masking was compared to that of non-mask-wearing countries which are comparable with HKSAR
- The COVID-19 incidence in HKSAR (129.0 per-million-population) was significantly lower (p<0.001) than that of Spain (2983.2), Italy (2250.8), Germany (1241.5), France (1151.6), U.S. (1102.8), U.K. (831.5), Singapore (259.8), and South Korea (200.5).
- The compliance of face mask usage by HKSAR general public was 96.6% (range: 95.7% to 97.2%).
- Community-wide mask wearing may contribute to the control of COVID-19 by reducing virus shedding in saliva and respiratory droplets from individuals with subclinical or mild COVID-19.