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  • Title: Evaluation of assay systems for the detection of rotavirus in stool specimens.
    Author: Mathewson JJ, Winsor DK, DuPont HL, Secor SL.
    Journal: Diagn Microbiol Infect Dis; 1989; 12(2):139-41. PubMed ID: 2546712.
    Abstract:
    We tested 41 rotavirus positive and 42 negative specimens as determined by electron microscopy. The assays systems used were an indirect NIH-ELISA, Meritec-Rotavirus, Virogen Rotatest, and Rotazyme II. Meritec and Virogen (latex agglutination assays) were the most sensitive tests, detecting 95% of the positive specimens. The NIH-ELISA detected 81% and Rotazyme detected 63%. Rotazyme was the most specific (100%), followed by the NIH-ELISA (95%) and the two latex agglutination systems (91%). To determine the level of rotavirus detection, we tested three systems against serial two-fold dilutions of ten positive stools. The NIH-ELISA detected rotavirus in an average dilution of 1:723. Rotazyme detected rotavirus in an average stool dilution of 1:366, and Meritec showed an average of 1:164. Rotavirus strains representing serotypes 1-4 were also tested. Meritec was able to detect all four serotypes. Virogen did not react with serotype 2 strains. The NIH-ELISA and rotazyme were unable to detect serotype 3. These data suggest that some latex agglutination assays may be a useful alternative to ELISAs in the clinical laboratory.
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