PMID- 31619295 OWN - NLM STAT- MEDLINE DCOM- 20200115 LR - 20231104 IS - 1746-6148 (Electronic) IS - 1746-6148 (Linking) VI - 15 IP - 1 DP - 2019 Oct 16 TI - Evaluation of the efficacy of a trivalent vaccine mixture against a triple challenge with Mycoplasma hyopneumoniae, PCV2, and PRRSV and the efficacy comparison of the respective monovalent vaccines against a single challenge. PG - 342 LID - 10.1186/s12917-019-2091-6 [doi] LID - 342 AB - BACKGROUND: The objective of this study was to assess the efficacy of a trivalent vaccine mixture and compare it to the respective monovalent vaccines against Mycoplasma hyopneumoniae, porcine circovirus type 2 (PCV2), and porcine reproductive and respiratory syndrome virus (PRRSV). RESULTS: Pigs that were triple challenged with M. hyopneumoniae, PCV2, and PRRSV following vaccination with the trivalent vaccine mixture exhibited a significantly better growth performance when compared to unvaccinated and challenged pigs. A statistical difference was not found when comparing pig populations which were vaccinated with the trivalent vaccine followed by a triple challenge and pigs vaccinated with monovalent M hyopneumoniae vaccine followed by mycoplasmal single challenge in the following areas: M. hyopneumoniae nasal shedding, the number of M. hyopneumoniae-specific interferon-gamma secreting cells (IFN-gamma-SC), and mycoplasmal lung lesion scores. Pigs vaccinated with the trivalent vaccine mixture followed by a triple challenge resulted in a similar reduction of PCV2 viremia, an increase in the number of PCV2-specific IFN-gamma-SC and reduction in interstitial lung lesion scores when compared to pigs vaccinated with a PCV-2 vaccine and challenged with PCV2 only. Lastly, there was a significant difference in the reduction of PRRSV viremia, an increase in PRRSV-specific IFN-gamma-SC and a reduction of interstitial lung lesion scores between pigs vaccinated with the trivalent vaccine mixture followed by a triple challenge and pigs vaccinated with a monovalent PRRSV vaccine followed by PRRSV challenge only. CONCLUSION: The trivalent vaccine mixture was efficacious against a triple challenge of M. hyopneumoniae, PCV2, and PRRSV. The trivalent vaccine mixture, however, did not result in equal protection when compared against each respective monovalent vaccine, with the largest vaccine occurring within PRRSV. FAU - Oh, Taehwan AU - Oh T AD - College of Veterinary Medicine, Department of Veterinary Pathology, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea. FAU - Park, Kee Hwan AU - Park KH AD - College of Veterinary Medicine, Department of Veterinary Pathology, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea. FAU - Yang, Siyeon AU - Yang S AD - College of Veterinary Medicine, Department of Veterinary Pathology, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea. FAU - Jeong, Jiwoon AU - Jeong J AD - College of Veterinary Medicine, Department of Veterinary Pathology, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea. FAU - Kang, Ikjae AU - Kang I AD - College of Veterinary Medicine, Department of Veterinary Pathology, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea. FAU - Park, Changhoon AU - Park C AD - College of Veterinary Medicine, Department of Veterinary Pathology, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea. FAU - Chae, Chanhee AU - Chae C AUID- ORCID: 0000-0002-0190-1957 AD - College of Veterinary Medicine, Department of Veterinary Pathology, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea. swine@snu.ac.kr. LA - eng GR - 550-20170104/Research Institute for Veterinary Science/ GR - 5260-20150100/BK 21 Plus Program for Creative Veterinary Science Research/ PT - Journal Article DEP - 20191016 PL - England TA - BMC Vet Res JT - BMC veterinary research JID - 101249759 RN - 0 (Bacterial Vaccines) RN - 0 (Vaccines, Combined) RN - 0 (Viral Vaccines) SB - IM MH - Animals MH - Bacterial Vaccines/immunology MH - Circoviridae Infections/immunology/prevention & control MH - Circovirus/*immunology MH - Female MH - Male MH - Mycoplasma hyopneumoniae/*immunology MH - Pneumonia of Swine, Mycoplasmal/immunology/prevention & control MH - Porcine Reproductive and Respiratory Syndrome/immunology/prevention & control MH - Porcine respiratory and reproductive syndrome virus/*immunology MH - Sus scrofa MH - Swine MH - Swine Diseases/immunology/microbiology/*prevention & control/virology MH - Vaccination/*veterinary MH - Vaccines, Combined/administration & dosage/immunology MH - Viral Vaccines/immunology PMC - PMC6794872 OTO - NOTNLM OT - Mycoplasma hyopneumoniae OT - Porcine circovirus type 2 OT - Porcine reproductive and respiratory syndrome virus OT - Porcine respiratory disease complex COIS- The authors declare that they have no competing interests. EDAT- 2019/10/18 06:00 MHDA- 2020/01/16 06:00 PMCR- 2019/10/16 CRDT- 2019/10/18 06:00 PHST- 2018/05/26 00:00 [received] PHST- 2019/09/16 00:00 [accepted] PHST- 2019/10/18 06:00 [entrez] PHST- 2019/10/18 06:00 [pubmed] PHST- 2020/01/16 06:00 [medline] PHST- 2019/10/16 00:00 [pmc-release] AID - 10.1186/s12917-019-2091-6 [pii] AID - 2091 [pii] AID - 10.1186/s12917-019-2091-6 [doi] PST - epublish SO - BMC Vet Res. 2019 Oct 16;15(1):342. doi: 10.1186/s12917-019-2091-6.