Fig. 2

Comparison of cycle threshold between patients that were culture positive vs. culture negative. Patients who had live virus cultured had a significantly lower Ct than those where live viruses could not be cultured (19 [18–23] vs. 29 [25–32] respectively, p < 0.001). Line is at the median, and the box edges represent the interquartile range. Arrows at the end of the boxes reflect the 95% range of values