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. 2020 Mar 10;11:323. doi: 10.3389/fmicb.2020.00323

FIGURE 4.

FIGURE 4

Sensitivity of chimeric viruses to swine neutralizing antibodies to Bartha-K61. (A) Sensitivity of PRV strain HB1201 and its derivatives to anti-Bartha-K61 sera. (B) Sensitivity of PRV Bartha-K61 and its derivatives to anti-Bartha-K61 serum. Virus neutralization assays were performed with antisera from three individual piglets. The data represent means ± standard deviations (SD) of three replicates. Asterisk indicates a significant difference: *P < 0.05; **P < 0.01; ***P < 0.001; NS: no difference.