Research Article

Characterization and Pathogenicity of the Novel Porcine Reproductive and Respiratory Syndrome Virus 1 Strain SL-01 in China

Figure 7

Pathogenicity results in pregnant sows. (a) Body temperature changes in pregnant sows in each group after challenge. (b) PRRSV-specific antibody level in each group during the challenge study. (c–e) Viral load detection in the blood, oral swabs, and pharyngeal swabs. Each bar represents the mean ± standard deviation in each group. Significant differences are marked with asterisks: , , and .
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