Masks did not reduce risk of COVID infection after first Omicron wave, UK research shows
"Our research shows that there were changes in some risk factors around the time that the Omicron BA.2 variant became dominant,” said Prof. Paul Hunter of Norwich Medical School.
A lady in a face mask looks at her phone amid the coronavirus disease (COVID-19) Omicron wave in Singapore, February 17, 2022.(photo credit: REUTERS/CAROLINE CHIA)ByJUDY SIEGEL-ITZKOVICH