report published Thursday by the #RoyalSociety looked at findings from six evidence reviews that analyzed thousands of studies to assess the effect of #masks, #SocialDistancing and lockdowns, test trace and isolate systems, border controls, #EnvironmentalControls and communications. https://social.espeweb.net/objects/98be2761-b45b-4abf-a0df-0882d030c48f
“It found evidence that each of these measures — which are called "non-pharmaceutical interventions" #NPIs — were effective, albeit to varying degrees, when looked at individually. However, the evidence in favor of using these tools was stronger when countries combined several measures.”