New Face Mask Study: "The incidence of self-reported COVID-19 was 33% higher in those wearing face masks often or sometimes"
mathewaldred.substack.com
New Face Mask Study: "The incidence of self-reported COVID-19 was 33% higher in those wearing face masks often or sometimes"
"...and 40% (aRR 1.40; 95% CI 1.08 – 1.82) higher in those wearing face masks almost always or always, compared to participants who reported wearing face masks never or almost never."