Usefulness of Face Masks Unmasked, from the NIH: ..

4 jr

Usefulness of Face Masks Unmasked, from the NIH:
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC76806

Facemasks in the COVID-19 era: A health hypothesis

www.ncbi.nlm.nih.gov

Facemasks in the COVID-19 era: A health hypothesis

Many countries across the globe utilized medical and non-medical facemasks as non-pharmaceutical intervention for reducing the transmission and infectivity of coronavirus disease-2019 (COVID-19). Although, scientific evidence supporting facemasks’ ..