Fig 2.

Median (range) rhinovirus load (log₁₀ copies per sample) obtained when respiratory symptoms were present on days 1, 5, 10, and 15 of the episodes and in asymptomatic infants in the 3 study groups. No significant differences were detected among the study groups at any time point (P = .650 on day 1, P = .605 on day 5, P = .856 on day 10, P = .121 on day 15, and P = .990 in asymptomatic infants). The difference between symptomatic infants on day 1 and asymptomatic infants was significant (P < .001).