VIDAS enzyme-linked immunoflourescent assay for detection of Listeria in foods: collaborative study.

  • Gangar V
  • Curiale M
  • D'Onorio A
 et al. 
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The VIDAS LIS method and the traditional culture methods for detection of Listeria species in food were evaluated in a multilaboratory comparative study. The 6 foods tested were either naturally contaminated or inoculated with 3 different concentrations of Listeria. Results for each food and each contamination level with the VIDAS LIS method were as good as or better than those obtained with the traditional culture method. Of 1558 samples tested, 935 were positive: 839 by the VIDAS method and 809 by standard culture methods. Overall false negative rates were 10.3 and 13.5% for the VIDAS LIS and culture methods, respectively. The false positive rate for the VIDAS LIS assay was 1.4% based on 9 VIDAS LIS positive assays that did not confirm positive by isolation of Listeria. The agreement between the VIDAS LIS and culture methods for all samples tested was 86%.

Author-supplied keywords

  • Animals
  • Cattle
  • Culture Media
  • Dairy Products
  • False Negative Reactions
  • False Positive Reactions
  • Fish Products
  • Fluorescent Antibody Technique
  • Food Microbiology
  • Immunoenzyme Techniques
  • Listeria
  • Listeria monocytogenes
  • Meat
  • Milk
  • Poultry Products
  • Quality Control
  • Sensitivity and Specificity
  • Turkeys
  • Vegetables
  • isolation & purification
  • microbiology

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  • V Gangar

  • M S Curiale

  • A D'Onorio

  • A Schultz

  • R L Johnson

  • V Atrache

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