Study by multiplex PCR of Listeria monocytogenes serotypes isolated in Argentine

A multiplex PCR assay, recently validated to characterize the serotypes of Listeria monocytogenes was evaluated in comparison to conventional serotyping. Three hundred forty two L. monocytogenes strains isolated from human, food, animal and environmental sources during the 1992-2005 period were assa...

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Published inRevista argentina de microbiología Vol. 40; no. 2; pp. 89 - 92
Main Authors Callejo, R, Prieto, M, Martínez, C, Aguerre, L, Rocca, F, Martínez, G, Palmieri, O
Format Journal Article
LanguageSpanish
Published Argentina 01.04.2008
Subjects
Argentina
Listeria monocytogenes - classification
Polymerase Chain Reaction - methods
Serotyping
Argentina
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Summary:A multiplex PCR assay, recently validated to characterize the serotypes of Listeria monocytogenes was evaluated in comparison to conventional serotyping. Three hundred forty two L. monocytogenes strains isolated from human, food, animal and environmental sources during the 1992-2005 period were assayed. The concordance between the two methods for serotypes 1/2a, 1/2b and 1/2c was 100%, whereas for serotype 4b it was 98%. Serotyping is a useful tool for first line strain differentiation during epidemiological surveillance and outbreaks. The multiplex PCR assay offers a fast and low-cost alternative, which is easily adaptable to clinical bacteriology and bromatology laboratories.
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ISSN:0325-7541