Tag: Cochrane review

The evidence that masks do nothing to stop transmission of COVID-19 is now overwhelming. Why, then, is an NHS mental health trust reiterating its demands for patients to wear masks?

Masks have no clear effect on the transmission of respiratory viruses. That's the conclusion of a major review of 78 RCTs led by Dr. Tom Jefferson. Oxford's Dr. Carl Heneghan interviews him about these striking findings.

Masks make no clear difference against viral infections, according to the latest gold standard review of trial data from Cochrane that examines the results of 78 randomised controlled trials.