Arroyo to Epidemiologist: Is There Hard Evidence that Masks Are Effective in Stopping Covid?
‘Where are the clinical trials?’
Jul 2, 2020 1:00 PM
By Grabien Staff
ARROYO: “Where are the clinical trials? We keep hearing about clinical trials. Is there proof that these are effective, these masks whether homemade or bought, whether they are effective in stopping the spread of Covid?”