4 ms·

Another study with SARS. Might be more applicable. Says masks reduce infection 68%, N95 91%. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2190272/#!po=1.0869

Another study with SARS. Might be more applicable. Says masks reduce infection 68%, N95 91%. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2190272/#!po=1.08696 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2190272/#!po=1....

suchire 7y ago
Cochrane reviews (of which this is one) are the gold standard for meta-analysis and evidence-based medicine. I trust their work a lot