Physical distancing, face masks, and eye protection to prevent person-to-person transmission of SARS-CoV-2 and COVID-19: a systematic review and meta-analysis

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  • Derek K Chu, MD
  • Prof Elie A Akl, MD
  • Stephanie Duda, MSc
  • Karla Solo, MSc
  • Sally Yaacoub, MPH
  • Prof Holger J Sch√ľnemann, MD
Journal The Lancet
Date June 1st, 2020

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Major Issues

The WHO-commissioned meta-study on the effectiveness of facemasks, published in the medical journal The Lancet in June 2020, has been instrumental in shifting global facemask policies during the Covid-19 pandemic. However, the meta-study, which claimed a risk reduction of 80% with facemasks, is seriously flawed on several levels and should be retracted.


Minor Issues

None at this time.


None at this time.

Article Revisions

None at this time.