title: Dirt alert.
authors.affiliation: Northern General Hospital NHS Trust, Sheffield.
authors.forename: M
authors.initials: M
authors.lastname: Thomson
authors.forename: P
authors.initials: P
authors.lastname: Hempshall
mesh_terms: D003428:Cross Infection / Q000517:prevention & control*; D006797:Housekeeping, Hospital; D006801:Humans; D017053:Infection Control / Q000379:methods*; D009741:Nursing Staff, Hospital