dc.creatorPadilla, C.
dc.creatorBrevis, P.
dc.creatorLobos, O.
dc.creatorHubert, E.
dc.creatorZamorano, A.
dc.date2007-11-26T16:11:58Z
dc.date2007-11-26T16:11:58Z
dc.date2001
dc.date.accessioned2017-03-07T14:43:21Z
dc.date.available2017-03-07T14:43:21Z
dc.identifierJournal of Hospital Infection Volume 49 (1): 43-47
dc.identifier0195-6701
dc.identifierhttp://dspace.utalca.cl/handle/1950/4081
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/371788
dc.descriptionPadilla, C.; Brevis,P.; Lobos,O.; Hubert, E. Laboratory of Microbiological Research, Institute of Biotechnology, University of Talca, Chile.
dc.descriptionFifty-nine clinical strains of bacteria, isolated from patients in the Regional Hospital of Talca, were studied. Seventy-four percent of these strains produced antibacterial substances, in comparison with 18% of the same bacterial species obtained from patients from a non-hospital habitat. Almost all the bacteria isolated from hospitalized patients demonstrated in vitro resistance to different antimicrobial agents. Pseudomonas aeruginosa was the most frequent species producing antibacterial substances and its products were of high potency, with a wide spectrum of antimicrobial activity. Cure of plasmid DNA, in most of the antibacterial-producer strains, resulted in the loss of their lethal activity and they also became susceptible in vitro to anti-microbials. These results indicated that such properties are encoded in extrachromosomal DNA. We believe that the knowledge of the antimicrobial activity and resistance to antimicrobials of bacteria from a hospital habitat can help explain the selection and persistence of such strains in this particular ecological niche.
dc.format2941 bytes
dc.formattext/html
dc.languageen
dc.publisherThe Hospital Infection Society
dc.subjectAntimicrobial substances; hospital habitat; bacterial species
dc.titleProduction of antimicrobial substances, by hospital bacteria, active against othermicro-organisms
dc.typeArtículos de revistas


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