Falsos cultivos positivos por contaminación cruzada en laboratorios de tuberculosis / False-positive cultures due to cross contamination in tuberculosis laboratories
Rev. argent. microbiol
;
34(3): 163-166, jul.-sept. 2002.
Artigo
em Espanhol
| LILACS
| ID: lil-331788
ABSTRACT
Fifteen episodes of Mycobacterium tuberculosis laboratory cross-contamination suspected between 1996 and 2001 at 6 laboratories in Buenos Aires City and suburbs were investigated by IS6110 RFLP. Thirteen episodes were confirmed. Even though BACTEC 460 produced the highest number of confirmed episodes in a single laboratory, the most extended one occurred while employing conventional culture procedures in solid medium. The double repetitive element-polymerase chain reaction (DRE-PCR) was applied to 8 of these episodes and produced concordant results with those of the RFLP. The DRE-PCR appears to be a valuable tool for the prompt identification of false positive cultures. The timely rectification of defects in laboratory protocols can avert false diagnoses of tuberculosis and unnecessary prolonged treatments.
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Índice:
LILACS (Américas)
Assunto principal:
Tuberculose
/
Polimorfismo de Fragmento de Restrição
/
DNA Bacteriano
/
Laboratórios Hospitalares
/
Reação em Cadeia da Polimerase
/
Contaminação de Equipamentos
/
Técnicas Bacteriológicas
/
Mycobacterium tuberculosis
Tipo de estudo:
Guia de Prática Clínica
Limite:
Humanos
País/Região como assunto:
América do Sul
/
Argentina
Idioma:
Espanhol
Revista:
Rev. argent. microbiol
Assunto da revista:
Microbiologia
Ano de publicação:
2002
Tipo de documento:
Artigo
País de afiliação:
Argentina
Instituição/País de afiliação:
Hospital F. J. Muñiz/AR
/
Hospital Interzonal General de Agudos Evita de Lanús/AR
/
Hospital J. Fernández/AR
/
Hospital J. Garrahan/AR
/
Hospital Municipal de San Isidro/AR
/
INEI ANLIS Carlos G. Malbrán/AR
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