Performance of the Molecular Alere i Influenza A&B Test Compared to That of the Xpert Flu A/B Assay
Data on the performance of rapid molecular point-of-care use platforms for diagnosis of influenza are lacking. We validated nasopharyngeal (NP) flocked specimens in universal transport medium (UTM) and evaluated the clinical sensitivity and specificity of the Alere i influenza A&B test compared to those of the Xpert flu A/B assay. The Alere i influenza A&B test had an overall sensitivity and specificity of 93.8% and 62.5% for influenza A, respectively, and of 91.8% and 53.6% for influenza B, respectively. The poor specificity was due to influenza virus samples determined positive for both type A and B.
With the studying on the techniques and tool of the Petri Nets based network protocol specifications and analyses,the paper analyzes the demands of the P/T Net based analyzer and designs the human machine form.Then the paper outlines the algorithms and the ideas of main function modules.When describing,analyzing and testing a P/T net example about the AB network protocol with the protocol analyzer,the protocol analyzer is proved to be effective.