title: Epidemiology: a critical tool for infection control professionals.
authors.forename: W A
authors.initials: WA
authors.lastname: Rutala
authors.forename: D J
authors.initials: DJ
authors.lastname: Weber
mesh_terms: D016022:Case-Control Studies; D015331:Cohort Studies; D003430:Cross-Sectional Studies; D004812:Epidemiologic Methods; D006801:Humans; D017053:Infection Control; D016032:Randomized Controlled Trials as Topic; D012107:Research Design