Joseph Nelson Siewe FodjoSupa PengpidEdlaine Faria de Moura VillelaVo Van ThangMohammed AhmedJohn DitekemenaBernardo Vega CrespoRhoda K. WanyenzeJaneth DulaTakashi WatanabeChristopher Delgado-RattoKoen Vanden DriesscheRafael Van den BerghRobert ColebundersElizabeth Glaser Pediatric AIDS FoundationUniversity Medicine and Pharmacy, Hue UniversityUniversidad Peruana Cayetano Heredia, Instituto de Medicina Tropical Alexander von HumboldtUniversite de KinshasaInstituto Nacional de Saude MaputoUniversity of CuencaMakerere UniversityUniversitair Ziekenhuis AntwerpenUniversiteit AntwerpenMahidol UniversityRadboud University Nijmegen Medical CentreMogadishu UniversityFederal University of Jataí2020-08-252020-08-252020-09-01Journal of Infection. Vol.81, No.3 (2020), e1-e515322742016344532-s2.0-85089101109https://repository.li.mahidol.ac.th/handle/20.500.14594/58026© 2020 The British Infection Association In new guidelines published on June 5th 2020, the World Health Organization (WHO) recommends that in areas with ongoing COVID-19 community transmission, governments should encourage the general public to wear face masks in specific situations and settings as part of a comprehensive approach to suppress COVID-19 transmission. Recent online surveys in 206,729 persons residing in nine low- and middle-income countries showed that 32.7%-99.7% of respondents used face masks with significant differences across age groups and sexes. Targeted health promotion strategies and government support are required to increase mask use by the general population.Mahidol UniversityMedicineLetterSCOPUS10.1016/j.jinf.2020.07.015