Clinical evaluation of ID NOW influenza A & B 2, a rapid influenza virus detection kit using isothermal nucleic acid amplification technology - A comparison with currently available tests.
Journal of Infection and Chemotherapy(2020)
摘要
In this study, we evaluated the performance of ID NOW Influenza A & B 2 (ID NOW 2), a rapid molecular point-of-care test for influenza within 13 min, in comparison with currently available tests. A total of 254 nasopharyngeal swabs (NPS) and 271 nasopharyngeal aspirates (NPA) collected from 373 children and 152 adults with influenza-like illness were tested using ID NOW 2, viral culture, rapid antigen detection test, and loop-mediated isothermal amplification test to evaluate the sensitivity and specificity compared with real-time reverse transcription polymerase chain reaction as the reference method. The sensitivities of ID NOW 2 for influenza A were 95.9% and 95.7% in NPS and NPA, respectively, and for influenza B were 100% and 98.7% in NPS and NPA, respectively. The specificity was 100% for both influenza A and influenza B in NPS and NPA. Sensitivity of each test method reflected the difference of analytical sensitivity among the tests, and ID NOW 2 was not affected by time after illness onset and patient age. In conclusion, ID NOW 2 demonstrated a high sensitivity and specificity that is useful for diagnosis of influenza in the clinical setting and infection control.
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关键词
Influenza,ID NOW influenza A & B 2,Isothermal nucleic acid amplification,Point-of-care testing,Rapid antigen detection test
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