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An evaluation of face mask effectiveness with a leading expert; positive.

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Mon, 2023-10-30 10:39 — mike kraft

 

Face mask effectiveness: What science knows now Does wearing a face mask help to prevent COVID? Three and a half years after the pandemic began, here's what scientists have learned. CBS News

 

Country / Region Tags: 
Global
General Topic Tags: 
COVID-19
Contagion
Disease Prevention
Masks
Public Health
Research
Science
Problem, Solution, SitRep, or ?: 
Analysis
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- Private group -
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