Evaluation of a multiplex PCR assay for simultaneous detection of bacterial and viral enteropathogens in stool samples of paediatric patients

Manuela Onori, Luana Coltella, Livia Mancinelli, Marta Argentieri, Donato Menichella, Alberto Villani, Annalisa Grandin, Diletta Valentini, Massimiliano Raponi, Cristina Russo

Research output: Contribution to journalArticlepeer-review

Abstract

We evaluated a multiplex PCR assay, the Seeplex Diarrhoea ACE detection, that simultaneously detects 15 enteric pathogens, including Salmonella spp., Shigella spp., Vibrio spp., toxin B producer Clostridium difficile, Campylobacter spp., Clostridium perfringens, Yersinia enterocolitica, Aeromonas spp., Escherichia coli O157:H7, verocytotoxin-producing Escherichia coli, adenovirus, Group A rotavirus, norovirus GI and GII, and astrovirus. We compared this assay with clinical methods routinely used in our laboratory, for detecting enteropathogens in stool samples collected from 245 paediatric patients with suspected infectious gastroenteritis. We recovered 61 bacterial pathogens and 121 enteric viruses with our laboratory assays, while we detected 78 bacteria and 167 viruses with the molecular assay. We calculated specificity and sensitivity for both methods after analysis of discordant results and demonstrated greater sensitivity for multiplex PCR than for our routine methods, with the exception of Salmonella spp. and toxigenic C. difficile detection. The multiplex PCR assay proved to be a reliable tool to directly detect the most common enteropathogens in stool samples but with some limitations.

Original languageEnglish
Pages (from-to)149-154
Number of pages6
JournalDiagnostic Microbiology and Infectious Disease
Volume79
Issue number2
DOIs
Publication statusPublished - 2014

Keywords

  • Enteric pathogens
  • Multiplex PCR
  • Paediatric patients

ASJC Scopus subject areas

  • Microbiology (medical)
  • Infectious Diseases
  • Medicine(all)

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