Mean titer of virus shed per day per pig (from CCIF assay) detected daily in rectal swab fluids of the experimental groups of piglets.

All animals were orally inoculated at 72 h of age [0 post inoculation day (0 PID)], and euthanized at 21±3 PID. SIC: small intestinal contents; and LIC: large intestinal contents, were collected after euthanasia. Horizontal bars represent the mean days of diarrhea duration for each group. The arrow at 0 PID indicates the inoculation day. The thin line indicates the duration of the passive treatments.