title: Legionellosis: evidence of airborne transmission.
mesh_terms: D000389:Air Conditioning; D000391:Air Microbiology; D000818:Animals; D004196:Disease Outbreaks; D004812:Epidemiologic Methods; D006168:Guinea Pigs; D006801:Humans; D007877:Legionnaires' Disease / Q000453:epidemiology / Q000635:transmission*; D014481:United States