Figure 4

Seroconversion of infected pigs detected by ICS. Serum samples from pigs infected with 100, 1000 and 10 000 ML at 0, 7, 9, 11, 13, 15, 17, 19, 21, 25, 30, 35, 45, 60, 90, and 120 dpi were detected by EuNPs-ML-ES ICS and EuNPs-PAW-ES ICS. A, C T-line fluorescence values analyzed by TRF reader shown as means ± SD of five independent pigs per doses. B, D Visual results under ultra-violet light for one pig per doses.