title: Escherichia coli in settled-dust and air samples collected in residential environments in Mexico City.
abstract: Escherichia coli, an important indicator of the presence of fecal material, was isolated from indoor and outdoor environments in Mexico City. The heterogeneity of E. coli was represented by 89 serotypes, most of them coming from settled-dust indoor samples; 21% of them presented antibiotic multiresistance. The numbers of plasmids were higher among the antibiotic-resistant strains. The results of this study suggest that intestinal infections produced by environmental strains could be of more epidemiological impact than previously thought.
authors.affiliation: Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, D.F., México.
authors.forename: I
authors.initials: I
authors.lastname: Rosas
authors.forename: E
authors.initials: E
authors.lastname: Salinas
authors.forename: A
authors.initials: A
authors.lastname: Yela
authors.forename: E
authors.initials: E
authors.lastname: Calva
authors.forename: C
authors.initials: C
authors.lastname: Eslava
authors.forename: A
authors.initials: A
authors.lastname: Cravioto
mesh_terms: D000391:Air Microbiology; D016902:Air Pollution, Indoor; D003967:Diarrhea / Q000453:epidemiology / Q000382:microbiology; D004352:Drug Resistance, Microbial; D004391:Dust; D004783:Environmental Microbiology; D004926:Escherichia coli / Q000145:classification / Q000187:drug effects / Q000302:isolation & purification*; D004927:Escherichia coli Infections / Q000453:epidemiology / Q000382:microbiology; D019453:Escherichia coli O157 / Q000302:isolation & purification; D005243:Feces / Q000382:microbiology; D006798:Housing; D006801:Humans; D008800:Mexico / Q000453:epidemiology; D012703:Serotyping; D014504:Urban Health
chemical_list: D004391:Dust