Fig. 2.

The comparison of positive percentage expression of Annexin V with propidium iodide (PI) on neutrophils in RSV bronchiolitis. The positive percentage of PI and Annexin V on neutrophils obtained from control peripheral blood (PB) (n = 9), RSV⁺ PB (n = 8), and from RSV⁺ nasopharyngeal aspirates (NPA) (n = 13) was determined by flow cytometric analysis. The values are expressed as mean ± s.e.m. *P < 0.05 compared with PI group (paired t-test); **P ≤ 0.05 compared with control PB group; ***P ≤ 0.05 compared with both control PB group and PI group.