COMMENTARY: Masks-for-all for COVID-19 not based on sound data
It's not gone. It's changing. It's killing': The COVID variants the WHO is watching closely
JCM, Free Full-Text
Amid shortage of face masks, researchers explore 3D options to guard against COVID-19, other infectious diseases - VA News
Masks Save Lives – NIH Director's Blog
A Breathable, Reusable, and Zero-Power Smart Face Mask for Wireless Cough and Mask-Wearing Monitoring
Face masks effectively limit the probability of SARS-CoV-2 transmission
Surgical masks reduce COVID-19 spread, large-scale study shows, News Center
COVID-19 - Wikipedia
New face mask prototype can detect Covid-19 infection, MIT News
Mask Up: Stop the spread of COVID-19
Mask or no mask for COVID-19: A public health and market study
Best KN95 Masks 2024
COMMENTARY: What can masks do? Part 1: The science behind COVID-19 protection