Adaptive immune responses to rhinovirus. PBMC from men and women were exposed to RV16 for 5 days. Culture supernatant was collected and assayed for IFNγ (A) and IL-13 (B) by ELISA. Data were natural log transformed and are shown as delta values (mean ± SEM) after subtracting control (unstimulated) values. Data are from 14 women and 10 men ≤50 years old, and from 18 women and 20 men ≥52 years old.