• RESEARCH HIGHLIGHT
• 05 December 2024

A high-grade mask such as the N95 sharply reduces the wearer’s exposure to the SARS-CoV-2 virus. Credit: CFOTO/Future Publishing/Getty

What would have happened if everyone in the United Kingdom had worn high-grade masks during the COVID-19 pandemic? A modelling study1 has estimated just how sharply transmission might have dropped.

doi: https://doi.org/10.1038/d41586-024-03976-0