2000, Number 2
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Microbiología 2000; 42 (2)
Detection of Vibrio cholerae O:1 in oysters by the Visual Colorimetric Immunoassay and the culture technique
Villalpando-Guzmán S, Eusebio-Hernández MG, Avilés-Ruíz D
Language: English
References: 22
Page: 63-68
PDF size: 56.84 Kb.
ABSTRACT
The Visual Colorimetric Immunoassay (Cholera SMARTTM) [NEW HORIZONS DIAG-NOSTICS] is among the quick diagnostic techniques developed during recent years for the direct detection of
Vibrio cholerae O:1 in fecal material. In this work, this immunoassay was used together with the culture technique (Laboratorios Nacionales de Salud Pública e Instituto Nacional de Diagnóstico y Referencia Epidemiológicos de la SSA. de México) to detect V. cholerae O:1 in 50 oyster samples. The samples were collected in Mexico City, from markets and roadside stands, during the period from October 1994 to March 1995. Of the 50 samples analyzed, only one was found positive by both techniques. These results indicate that the Cholera SMARTTM [NHD] kit represents a quick and simple technique for the detection of V. cholerae O:1 in oysters. Apart from looking for the V. cholerae O:1, various members of the Vibrionaceae family were isolated and identified from the same oyster samples. The findings were as follows: V. cholerae NO O:1 (26 %), V. parahaemolyticus (8%), V. alginolyticus (46 %), other species of the Vibrio spp. genus (6 %) and species from the Aeromonas spp. genus (12 %).
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