Median intervals from specimen collection to test result were 15 minutes [ interquartile range ( IQR ) 10-23 minutes ) for Quidel Influenza A+B POCT , 20 minutes ( IQR 15-30 minutes ) for BinaxNOW pneumococcal POCT , 50.8 hours ( IQR 44.3-92 .6 hours ) for semi-nested conventional PCR , 29.2 hours ( IQR 26-46 .9 hours ) for real-time PCR , 629.6 hours ( IQR 262.5-846 .7 hours ) for culture of influenza and 84.4 hours ( IQR 70.7-137 .8 hours ) and 71.4 hours ( IQR 69.15-84 .0 hours ) for culture of S. pneumoniae in blood and sputum , respectively .