Titration of anti-FMDV serotype Asia 1 antibodies induced following infection with rescued serotype Asia 1 FMDV.

Values are reciprocals of the highest serum dilutions yielding positive results in the blocking ELISA on the indicated day post inoculation (dpi). A (-) indicates samples which were scored negative in the spot test (see Figure 4B) and N.D. indicates when samples were not collected. Calves 1C1 and 1C5 were inoculated with the rescued serotype Asia 1 FMDV (Asia-1/BAM/AFG/L590/2009) on day 0 and the other calves were maintained in contact with them.