Median time to treatment decreased from 11.4 d ( interquartile range [ IQR ] = 8.5-14 .5 ) to 8.1 d ( IQR = 5.4-9 .3 ) ( p = 0.04 ) , although not among confirmed cases ( median 7.5 [ IQR = 4.9-10 .0 ] versus 7.3 [ IQR = 3.4-9 .0 ] , p = 0.51 ) .