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Fig. 2 | Porcine Health Management

Fig. 2

From: Initial vaccination and revaccination with Type I PRRS 94881 MLV reduces viral load and infection with porcine reproductive and respiratory syndrome virus

Fig. 2

PRRSV viral RNA load in gilts after challenge with PRRSV strain 190136. Serum PRRS viral RNA load was assessed using RT-qPCR. Viral RNA load was baseline in all groups from Day 0–91. All gilts were challenged with PRRSV strain 190,136 on Day 91. The viral RNA loads of both vaccination groups were significantly reduced compared with the challenge control group on Days 98 (P < 0.0001) and Day 101 (P < 0.0001). Challenge control group (n = 16); Revaccination group (n = 16); Single-vaccination group (n = 16). aP < 0.001 for challenge control vs revaccination group; bP < 0.0001 for challenge control vs revaccination or single-vaccination group; cP < 0.05 for revaccination group vs single-vaccination group

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Porcine Health Management

ISSN: 2055-5660

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