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Fig. 4 | BMC Veterinary Research

Fig. 4

From: Effect of vaccination route (intradermal vs. intramuscular) against porcine reproductive and respiratory syndrome using a modified live vaccine on systemic and mucosal immune response and virus transmission in pigs

Fig. 4

Systemic humoral response during the postchallenge period. Detection of PRRSV IgG antibodies by ELISA in the serum of inoculated (a) or contact pigs (b) (mean + SD; 8 pigs per group). Red star indicates that the V+ ID group is significantly different from the V- group, and blue star indicates that the V+ IM group is significantly different from the V- group. Detection of PRRSV neutralizing antibodies by the virus neutralizing test against the vaccine strain in the serum of inoculated (c) or contact pigs (d) (8 pigs per group). In boxplots, different letters above the bars indicate that the groups are significantly different from each other with p < 0.05

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