Fig. 4: Longitudinal viral load measurements.
From: SARS-CoV-2 viral load is associated with increased disease severity and mortality
Samples were obtained from plasma (a, b), nasopharyngeal swab (c, d), oropharyngeal swab (e, f), or sputum (g, h). Red dots and lines show viral loads in those who died. Two-tailed Wilcoxon signed rank test P values showing significant changes over time are reported in an analysis of viral loads at the first and second available time points (TPs) from plasma (n = 13), nasopharyngeal (n = 16), oropharyngeal (n = 10), sputum (n = 12). Cps copies.
