Advice on the use of masks in the community setting in Influenza A (H1N1) outbreaks
Interim guidance
3 May 2009
| Guidance (normative)
Overview
This document provides interim guidance on the use of masks in communities that have reported community-level outbreaks caused by the new Influenza A(H1N1) virus. It will be revised as more data become available.
WHO Team
Number of pages
2
Copyright
World Health Organization 2009