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Comparison of immunological and molecular hybridization detection methods for the detection of hepatitis A virus in sewage
Author(s) -
JehlPietri Chantal,
Hugues B.,
Andre M.,
Diez J.M.,
Bosch A.
Publication year - 1993
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1993.tb00385.x
Subject(s) - hepatitis a virus , effluent , biology , sewage , complementary dna , digoxigenin , virology , virus , microbiology and biotechnology , chromatography , chemistry , in situ hybridization , environmental science , gene , gene expression , biochemistry , environmental engineering
Immune electron microscopy (IEM), radioimmunoassay (RIA) and molecular hybridization with a digoxigenin‐labelled cDNA probe were compared for the detection of wild‐type human hepatitis A virus (HAV) in raw and treated sewage. In the same experiments, classic tests for culturable enteroviruses were carried out. With the hybridization probes, HAV was detected in three of the 13 amuent samples (23%) and in eight out of 13 effluent samples (61%). For four of the emuent samples, positivity revealed by IEM was confirmed by the cDNA probe. In contrast, two of the samples shown as positive by IEM were negative with the probes. Detection of HAV by RIA was negative in all cases. Demonstration of HAV was higher in emuent than in affluent. No particular relationship was established between demonstration of HAV, on the one hand, and the various concentrations of enteroviruses observed in the same samples on the other. Overall, if all the results, irrespective of the type of water (affluent or effluent), are taken together, 50% of the sewage samples tested were found to contain HAV by one or another method of detection.