‘Writing last month, Adrien Burch, an expert in microbiology at the University of California, Berkeley, noted that “despite hearing that face masks ‘don't work,’ you probably haven't seen any strong evidence to support that claim. That's because it doesn't exist…
‘In fact, there is evidence of the exact opposite: that masks help prevent viral infections like the current pandemic.
‘Burch pointed to a Cochrane Review -- a systemic analysis of published studies on a given topic -- which found strong evidence during the 2003 SARS epidemic in support of wearing masks. One study of community transmission in Beijing found that "consistently wearing a mask in public was associated with a 70% reduction in the risk of catching SARS.”’
Read here (CNN, April 1, 2020)
