File: Interim_Guidance_Advice_on_Use_of_Masks_in_the_context_of_COVID-19_WHO_05Jun2020.pdfUpdated date: 11-Aug-2020Sector: All SectorsHealthDoc Type: Prevention AdviceTechnical Guidelines & ReferenceEmergency Name: Coronavirus Disease 2019 (COVID-19)Updated_Date: 11-Aug-2020Expired Date: 11-Aug-2020Prevention Categories: Preventive Materials - Mask & PPE