The Food and Drug Administration Aug. 22 granted emergency use authorization for two new combined COVID-19 and influenza tests. The Nano-Check Influenza-COVID-19 Dual Test is authorized for use by laboratories to detect and differentiate influenza A and B and SARS-CoV-2 in nasal swab specimens. The Flowflex Plus COVID-19 and Flu A/B Home Test is authorized for home use for people aged two and older.