Figure 3

Microfilament changes detected by FCM. Flow cytometry analysis of mean fluorescence intensity of F-actin in IPEC-J2 cells infected with PCV2 at 3×102.5 TCID50/ml for 1, 24, 48 and 72 h. F-actin was detected using phalloidin-FITC. Asterisks indicate highly significant differences between experimental and control samples (P <0.01) (n = 3).