The key line from the study that that cites: > The high risk of bias in the trials, variation in outcome measurement, and relatively low adherence with the int

The key line from the study that that cites: > The high risk of bias in the trials, variation in outcome measurement, and relatively low adherence with the interventions during the studies hampers drawing firm conclusions Source: https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD006207.pub6/full?s=08 https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD... They asked people to wear masks, and they didn't wear masks, so they had trouble concluding things about masks. This New York Times article prompted the Cochrane review to issue a statement: > The Cochrane Review 'Physical interventions to interrupt or reduce the spread of respiratory viruses' was published in January 2023 and has been widely misinterpreted. Source: https://www.cochrane.org/news/statement-physical-interventions-interrupt-or-reduce-spread-respiratory-viruses-review https://www.cochrane.org/news/statement-physical-interventio...