title: Efficacy of face masks and respirators in preventing upper respiratory tract bacterial colonization and co-infection in hospital healthcare workers - comment on the article by MacIntyre et al.
authors.affiliation: Department of General Practice, Erasmus MC, University Medical Centre Rotterdam, The Netherlands.
authors.forename: N S
authors.initials: NS
authors.lastname: Soerokromo
authors.affiliation: Department of General Practice, Erasmus MC, University Medical Centre Rotterdam, The Netherlands.
authors.forename: L C L
authors.initials: LC
authors.lastname: Retera
authors.affiliation: Department of General Practice, Erasmus MC, University Medical Centre Rotterdam, The Netherlands. Electronic address: n.lankhorst@erasmusmc.nl.
authors.forename: N E
authors.initials: NE
authors.lastname: Lankhorst
mesh_terms: D060085:Coinfection / Q000517:prevention & control*; D005260:Female; D006801:Humans; D008297:Male; D008505:Medical Staff, Hospital / Q000706:statistics & numerical data*; D012134:Respiratory Protective Devices / Q000592:standards*; D012141:Respiratory Tract Infections / Q000517:prevention & control*
keywords: Bacterial colonization; Bias; Comment; Healthcare workers; Hospitals; Masks