Fig. 2.

Longitudinal surveillance of HRV viral loads in university students. Self-collected mid-turbinate nasal swabs (n = 98) were serially submitted over a 7-day period by undergraduate students (n = 14) following the onset of upper respiratory tract infection. Fourteen nasal swabs were tested per time point. Data are plotted as mean viral loads (log₁₀ viral copies/mL) and SEM for various days following onset of symptoms (P < 0.001).