In the recent Coronavirus scare, masks were promoted as one way to minimise possible infection. Did they really help?
A study, reviewed yesterday by an English medical commentator, Dr John Campbell, says, NO!
Watch what he has to say on this Youtube video: https://www.youtube.com/watch?v=S3vY2LyQn1A.
The study he reviews can be found at: https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD006207.pub6/full
Here's the beginning of this particular study:
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Physical interventions to interrupt or reduce the spread of respiratory viruses
- Tom Jefferson
- Liz Dooley
- Eliana Ferroni
- Lubna A Al-Ansary
- Mieke L van Driel
- Ghada A Bawazeer
- Mark A Jones
- Tammy C Hoffmann
- Justin Clark
- Elaine M Beller
- Paul P Glasziou
- John M Conly
Version published: 30 January 2023 Version history
Background
Viral epidemics or pandemics of acute respiratory infections (ARIs) pose a global threat. Examples are influenza (H1N1) caused by the H1N1pdm09 virus in 2009, severe acute respiratory syndrome (SARS) in 2003, and coronavirus disease 2019 (COVID‐19) caused by SARS‐CoV‐2 in 2019. Antiviral drugs and vaccines may be insufficient to prevent their spread. This is an update of a Cochrane Review last published in 2020. We include results from studies from the current COVID‐19 pandemic.
Objectives
To assess the effectiveness of physical interventions to interrupt or reduce the spread of acute respiratory viruses.
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The conclusions are sure to be controversial, because the use of masks is deeply imbedded in medical orthodoxy.