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You are here		hal2020.com Masking Ignorance \| Hal's (Im)Perfect Vision
\|	\|	smartairfilters.com N95 Masks vs. Surgical Masks: Which Is Better For COVID-19? - Smart Air	3.4 parsecs away Travel
\|	\|	Researchers randomly assigned people to wear surgical masks or N95 masks. Then they tracked how many caught the flu. The results were very surprising.	3.4 parsecs away Travel
\|	\|	www.juliusruechel.com Julius Ruechel: Droplets and Aerosols, Why Catching the Sneeze Doesn't Reduce Viral Transmission	4.5 parsecs away Travel
\|	\|	Research into droplets and aerosols produced by coughing, sneezing and breathing shows why face masks don't work for viruses but do work for bacteria.	4.5 parsecs away Travel
\|	\|	www.verywellhealth.com How Well Does One-Way Masking Protect You From COVID?	2.7 parsecs away Travel
\|	\|	One-way masking still provides protection against COVID-19. To maximize its effectiveness, experts say your mask should be high-quality and well-fitting.	2.7 parsecs away Travel
\|	\|	www.nature.com Rapid evaluation of COVID-19 vaccine effectiveness against symptomatic infection with SARS-CoV-2 variants by analysis of gene...	29.5 parsecs away Travel
\|		Timely evaluation of the protective effects of Coronavirus Disease 2019 (COVID-19) vaccines against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern is urgently needed to inform pandemic control planning. Based on 78 vaccine efficacy or effectiveness (VE) data from 49 studies and 1,984,241 SARS-CoV-2 sequences collected from 31 regions, we analyzed the relationship between genetic distance (GD) of circulating viruses against the vaccine strain and VE against symptomatic in...	29.5 parsecs away Travel