Multiple isolates from Aids patients: aspects of an analysis by a genotypic marker and antimicrobial susceptibilities variations

Twenty-one Mycobacterium avium multisolates, from ten human immunodeficiency virus-infected patients, were typed by restriction fragment length polymorphism using as marker the IS1245 and characterized by minimum inhibitory concentration for nine different antibiotics. Two out of four patients harbo...

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Main Authors: Maria Helena Féres Saad, Maria Alice Telles, Fátima Porfirio, Lucilaine Ferrazoli, Leila de Souza Fonseca, Warren Johnson Jr, Lee W Riley
Format: Article
Language:English
Published: Fundação Oswaldo Cruz (FIOCRUZ) 2000-10-01
Series:Memorias do Instituto Oswaldo Cruz
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762000000500021
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author Maria Helena Féres Saad
Maria Alice Telles
Fátima Porfirio
Lucilaine Ferrazoli
Leila de Souza Fonseca
Warren Johnson Jr
Lee W Riley
author_facet Maria Helena Féres Saad
Maria Alice Telles
Fátima Porfirio
Lucilaine Ferrazoli
Leila de Souza Fonseca
Warren Johnson Jr
Lee W Riley
author_sort Maria Helena Féres Saad
collection DOAJ
description Twenty-one Mycobacterium avium multisolates, from ten human immunodeficiency virus-infected patients, were typed by restriction fragment length polymorphism using as marker the IS1245 and characterized by minimum inhibitory concentration for nine different antibiotics. Two out of four patients harboring multisolates with different fingerprint profile, were therefore considered as having a polyclonal infection, since their isolates were taken from sterile site. This result confirms that polyclonal infection caused by M. avium occurs with a nonnegligenciable frequency. Analyzing the multisolates susceptibility profile of each patient it was observed that most of them were infected with strains having appreciably different antimicrobial susceptibility patterns, no matter what the genotypic pattern of the strains was. These results have strong implication for the treatment of the patients.
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spelling doaj.art-6175413c636d403d8ff5f8555921901f2023-09-03T07:27:13ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80602000-10-0195572973210.1590/S0074-02762000000500021Multiple isolates from Aids patients: aspects of an analysis by a genotypic marker and antimicrobial susceptibilities variationsMaria Helena Féres SaadMaria Alice TellesFátima PorfirioLucilaine FerrazoliLeila de Souza FonsecaWarren Johnson JrLee W RileyTwenty-one Mycobacterium avium multisolates, from ten human immunodeficiency virus-infected patients, were typed by restriction fragment length polymorphism using as marker the IS1245 and characterized by minimum inhibitory concentration for nine different antibiotics. Two out of four patients harboring multisolates with different fingerprint profile, were therefore considered as having a polyclonal infection, since their isolates were taken from sterile site. This result confirms that polyclonal infection caused by M. avium occurs with a nonnegligenciable frequency. Analyzing the multisolates susceptibility profile of each patient it was observed that most of them were infected with strains having appreciably different antimicrobial susceptibility patterns, no matter what the genotypic pattern of the strains was. These results have strong implication for the treatment of the patients.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762000000500021Mycobacterium aviumpolyclonal infectionsusceptibility test
spellingShingle Maria Helena Féres Saad
Maria Alice Telles
Fátima Porfirio
Lucilaine Ferrazoli
Leila de Souza Fonseca
Warren Johnson Jr
Lee W Riley
Multiple isolates from Aids patients: aspects of an analysis by a genotypic marker and antimicrobial susceptibilities variations
Memorias do Instituto Oswaldo Cruz
Mycobacterium avium
polyclonal infection
susceptibility test
title Multiple isolates from Aids patients: aspects of an analysis by a genotypic marker and antimicrobial susceptibilities variations
title_full Multiple isolates from Aids patients: aspects of an analysis by a genotypic marker and antimicrobial susceptibilities variations
title_fullStr Multiple isolates from Aids patients: aspects of an analysis by a genotypic marker and antimicrobial susceptibilities variations
title_full_unstemmed Multiple isolates from Aids patients: aspects of an analysis by a genotypic marker and antimicrobial susceptibilities variations
title_short Multiple isolates from Aids patients: aspects of an analysis by a genotypic marker and antimicrobial susceptibilities variations
title_sort multiple isolates from aids patients aspects of an analysis by a genotypic marker and antimicrobial susceptibilities variations
topic Mycobacterium avium
polyclonal infection
susceptibility test
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762000000500021
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