An evaluation of the RIDASCREEN and IDEIA enzyme immunoassays and the RIDAQUICK immunochromatographic test for the detection of norovirus in faecal specimens

作者：Kirby Andrew^*; Gurgel Ricardo Q; Dove Winifred; Vieira Sarah Cristina F; Cunliffe Nigel A; Cuevas Luis E

来源：Journal of Clinical Virology, 2010, 49(4): 254-257.

DOI：10.1016/j.jcv.2010.08.004

• Norovirus
• ELISA
• Immunochromatographic
• Sensitivity
• Specificity

Background: The detection of norovirus by ELISA and immunochromatographic methods may facilitate epidemiological studies into the global disease burden associated with norovirus gastroenteritis and provide a quick method of testing for norovirus infection.
Objectives: To evaluate the new RIDASCREEN norovirus ELISA (3rd generation) and RIDAQUICK norovirus immunochromatographic test on a collection of samples from Brazilian children with acute gastroenteritis, and compare them against the established 2nd generation IDEIA norovirus assay.
Study design: Reverse transcriptase PCR, the study reference standard, was used to test 726 specimens for the presence of norovirus. All 96 norovirus positive samples and a systematic selection of negative samples were tested by RIDASCREEN, RIDAQUICK and IDEIA norovirus tests.
Results: The sensitivity of RIDASCREEN for the detection of norovirus was 63% (95% CI: 53-72%) and RIDAQUICK 69% (95% CI: 58-78%); both were >98% specific. The IDEIA had a sensitivity of 45% (95% CI: 35-55%), significantly lower than RIDASCREEN and RIDAQUICK (p <= 0.01). The sensitivity of RIDASCREEN and RIDAQUICK in detecting GII.4 noroviruses, the principal norovirus strain identified in community and nosocomial infection globally, was 78% and 88% respectively.
Conclusion: The norovirus RIDASCREEN test may be useful in epidemiological studies of norovirus infection and the norovirus RIDAQUICK test offers an accurate and rapid method of detecting norovirus infection.

• 出版日期2010-12