title: Legionnaires' disease: the infective dose paradox.
authors.affiliation: Department of Infection, Medical School, Birmingham, UK.
authors.forename: S J
authors.initials: SJ
authors.lastname: O'Brien
authors.forename: R S
authors.initials: RS
authors.lastname: Bhopal
mesh_terms: D000336:Aerosols; D000391:Air Microbiology; D000818:Animals; D015169:Colony Count, Microbial; D006224:Cricetinae; D006168:Guinea Pigs; D000882:Haplorhini; D006801:Humans; D016952:Legionella pneumophila / Q000472:pathogenicity*; D007877:Legionnaires' Disease / Q000382:microbiology* / Q000635:transmission; D051381:Rats
chemical_list: D000336:Aerosols