Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of selected SARI and ILI sign and symptom combinations for laboratory-confirmed influenza infection, South Africa, February 2009–April 2012.
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*Only respiratory specimens collected during influenza seasons (May to September) were included in this analysis.Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of selected SARI and ILI sign and symptom combinations for laboratory-confirmed influenza infection, South Africa, February 2009–April 2012.
创建时间：
2015-12-03
