CAPACITY STRENGTHENING TOOL

Coronavirus disease (COVID-19): Masks

This document, dated December 2, 2020, is an update of the guidance published previously and includes updated scientific evidence relevant to the use of masks for preventing transmission of Coronavirus disease 2019 (COVID-19) as well as practical considerations. It is presented in the form of Questions and Answers.

Last modified: December 6, 2020

Language: English

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