PMID- 29382967 OWN - NLM STAT- MEDLINE DCOM- 20180813 LR - 20181113 IS - 1928-9022 (Electronic) IS - 0830-9000 (Print) IS - 0830-9000 (Linking) VI - 82 IP - 1 DP - 2018 Jan TI - Comparison of 3 vaccination strategies against porcine reproductive and respiratory syndrome virus, Mycoplasma hyopneumoniae, and porcine circovirus type 2 on a 3 pathogen challenge model. PG - 39-47 AB - The objective of this study was to compare clinical, microbiologic, immunologic, and pathologic parameters in pigs each concurrently administered porcine reproductive and respiratory syndrome virus (PRRSV), Mycoplasma hyopneumoniae, and porcine circovirus type 2 (PCV2) vaccine from 1 of 2 commercial sources at 21 days of age and challenged with field strains of each of the 3 pathogens. Pigs were challenged with PRRSV and M. hyopneumoniae at 42 days of age (-14 days post-challenge, dpc) followed by a challenge with PCV2 at 56 days of age (0 dpc). Significant differences were observed between vaccinated challenged and unvaccinated challenged groups in clinical (average daily gain and clinical signs), microbiologic (viremia and nasal shedding), immunologic (antibodies and interferon-gamma secreting cells), and pathologic (lesions) outcomes. Significant differences were observed among the 3 vaccinated challenged groups in microbiologic (nasal shedding of M. hyopneumoniae and viremia of PCV2) and immunologic (M. hyopneumoniae- and PCV2-specific interferon-gamma secreting cells) outcomes. The vaccination regimen for PRRSV vaccine, M. hyopneumoniae vaccine, and PCV2 vaccine is efficacious for controlling triple challenge with PRRSV, M. hyopneumoniae, and PCV2 from weaning to finishing period. FAU - Jeong, Jiwoon AU - Jeong J AD - Seoul National University, College of Veterinary Medicine, Department of Veterinary Pathology, 1 Gwanak-ro, Gwanak-gu, 151-742, Seoul, Republic of Korea. FAU - Kang, Ikjae AU - Kang I AD - Seoul National University, College of Veterinary Medicine, Department of Veterinary Pathology, 1 Gwanak-ro, Gwanak-gu, 151-742, Seoul, Republic of Korea. FAU - Kim, Seeun AU - Kim S AD - Seoul National University, College of Veterinary Medicine, Department of Veterinary Pathology, 1 Gwanak-ro, Gwanak-gu, 151-742, Seoul, Republic of Korea. FAU - Park, Kee Hwan AU - Park KH AD - Seoul National University, College of Veterinary Medicine, Department of Veterinary Pathology, 1 Gwanak-ro, Gwanak-gu, 151-742, Seoul, Republic of Korea. FAU - Park, Changhoon AU - Park C AD - Seoul National University, College of Veterinary Medicine, Department of Veterinary Pathology, 1 Gwanak-ro, Gwanak-gu, 151-742, Seoul, Republic of Korea. FAU - Chae, Chanhee AU - Chae C AD - Seoul National University, College of Veterinary Medicine, Department of Veterinary Pathology, 1 Gwanak-ro, Gwanak-gu, 151-742, Seoul, Republic of Korea. LA - eng PT - Journal Article PT - Randomized Controlled Trial PL - Canada TA - Can J Vet Res JT - Canadian journal of veterinary research = Revue canadienne de recherche veterinaire JID - 8607793 RN - 0 (Bacterial Vaccines) RN - 0 (DNA, Viral) RN - 0 (RNA, Viral) RN - 0 (Viral Vaccines) SB - IM MH - Animals MH - Bacterial Vaccines/administration & dosage/immunology MH - Circoviridae Infections/immunology/prevention & control/*veterinary MH - *Circovirus/classification/immunology MH - DNA, Viral/blood MH - Mycoplasma hyopneumoniae/immunology MH - Pneumonia of Swine, Mycoplasmal/microbiology/*prevention & control MH - Porcine Reproductive and Respiratory Syndrome/*prevention & control/virology MH - Porcine respiratory and reproductive syndrome virus/immunology MH - RNA, Viral/blood MH - Swine MH - Swine Diseases/microbiology/prevention & control/virology MH - Time Factors MH - Vaccination/*veterinary MH - Viral Vaccines/administration & dosage/immunology MH - Viremia/veterinary PMC - PMC5764041 EDAT- 2018/02/01 06:00 MHDA- 2018/08/14 06:00 PMCR- 2018/07/01 CRDT- 2018/02/01 06:00 PHST- 2017/02/03 00:00 [received] PHST- 2017/05/24 00:00 [accepted] PHST- 2018/02/01 06:00 [entrez] PHST- 2018/02/01 06:00 [pubmed] PHST- 2018/08/14 06:00 [medline] PHST- 2018/07/01 00:00 [pmc-release] AID - cjvr_01_39 [pii] PST - ppublish SO - Can J Vet Res. 2018 Jan;82(1):39-47.