Mask-wearing cuts Covid incidence by 53%, says global study

Globally, Covid cases exceeded 250 million this month. The virus is still infecting 50 million people worldwide every 90 days due to the highly transmissible Delta variant, with thousands dying each day.

Now a systematic review and meta analysis of non-pharmaceutical interventions has found for the first time that mask wearing, social distancing and handwashing are all effective measures at curbing cases – with mask wearing the most effective.  —Guardian