Skip to main content
Fig. 4 | BMC Veterinary Research

Fig. 4

From: Immunity against a Japanese local strain of porcine reproductive and respiratory syndrome virus decreases viremia and symptoms of a highly pathogenic strain

Fig. 4

Quantity of viral RNA in the serum (a) and oral fluid (b) of the pigs following challenge with strain 10,186–614. Quantity of porcine reproductive and respiratory syndrome virus (PRRSV) RNA was measured by one-step real-time reverse transcriptase PCR. Statistically significant differences between Groups 2 and 3 are indicated (††P < 0.01). Gray squares indicate the quantity of the viral RNA of Group 2; black squares indicate those of Group 3. N.D. indicates that the viral RNA was under the detection limit of RT-qPCR. The maximum dilution value of the synthetic DNA was set as the cut off (dashed line)

Back to article page