Performance — not serology or PCR — is best indicator of modified-live PRRS vaccine efficacy

calendar icon 11 November 2021
clock icon 2 minute read
Noel Garbes, DVM, senior technical services veterinarian, Zoetis,
Noel Garbes, DVM, senior technical services veterinarian, Zoetis,
References
References
1 Dee S, et al. Comparison of immunological response, shedding profiles, and production performance between Fostera PRRS and Ingelvac PRRS MLV in the face of heterologous PRRSV challenge. Proceedings Am Assoc Swine Vet. 2016;175-178.
2 Madapong A, et al. Humoral immune responses and viral shedding following vaccination with modified live porcine reproductive and respiratory syndrome virus vaccines. Arch Virol. 2017;162:139.
3 Misener M, et al. Delayed PRRS virus seroconversion after vaccinating neonatal pigs. Proceedings Internat Pig Vet Soc. 2002;534.
4 O’Loughlin M, et al. A pilot study evaluating maternal antibody interference with Ingelvac PRRS MLV and Fostera PRRS vaccines. Proceedings Am Assoc Swine Vet. 2015;333-38.
5 Porcine reproductive and respiratory syndrome (PRRS), Iowa State University. https://vetmed.iastate.edu/vdpam/FSVD/swine/index diseases/porcine-reproductive Accessed March 21, 2021.
6 Pearce DS, et al. Live virus determination of PRRSV vaccines on primary porcine alveolar macrophages. Proceedings Internat Pig Vet Soc. 2014;158.
7 Balasch M, et al. Assessment of the replication of porcine reproductiveand respiratory syndrome modified live virus attenuated vaccines in porcine alveolar macrophages. 2019 European Symposium of Porcine Health Management, Utrecht.
8 Jeong J, et al. Vaccination with a porcine reproductive and respiratory syndrome virus vaccine at 1-day-old improved growth performance of piglets under field conditions. Vet Microbiol. 2018;214:113-124.
9 Aljets K, et al. Field evaluation of vaccination of piglets at processing using Fostera® PRRS. Proceedings Am Assoc Swine Vet. 2017;207-211.
10 Angulo J, et al. Efficacy of a PRRSV MLV vaccine against a genetically diverse range of PRRSV isolates. 2015 Allen D. Leman Swine Conference.

Pig Health Today

© 2000 - 2024 - Global Ag Media. All Rights Reserved | No part of this site may be reproduced without permission.