Daniel R. Feikin, Basem M. Alraddadi, Mohammed Qutub, Omaima Shabouni, Aaron Curns, Ikwo K. Oboho, Sara M. Tomczyk, Bernard J. Wolff, John T. Watson, and Tariq A. Madani
Figure 1. Box plot of Ct values for MERS-CoV patients by specimen type, Kingdom of Saudi Arabia, 2014. Box and whiskers plot features are as follows: central line in box is median, bottom line of box is first quartile (25%), top line of box is third quartile (75%), diamond is mean, bottom of whiskers is first quarter minus 1.5 × interquartile range, top of whiskers is third quarter plus 1.5 × interquartile range, and dots are outliers. Groups were compared by using the Kruskal-Wallis test, p<0.0001. Ct , cycle threshold; MERS-CoV, Middle East respiratory syndrome coronavirus; upE, upstream of E gene.