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Effect of sow vaccination against porcine circovirus type 2 (PCV2) on virological profiles in herds with or without PCV2 systemic disease

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Abstract
We investigated porcine circovirus type 2 (PCV2) virological profiles in herds affected (PCVAD-AH, n = 5) or non-affected (PCVAD-NAH, n = 4) by PCV2-associated diseases (PCVAD), before and after 1 y of PCV2 gilt and sow vaccination. Fresh feces from the floor (5 pens/age/farm) and 5 blood samples (1/pen) were collected at 3, 9, 15, 21 wk. Individual feces and blood samples were collected from 5 gilts and 15 sows. Sampling was repeated 1 y after vaccination. Quantitative PCR on feces, PCV2 antibodies in blood serum and cell-mediated immunity were investigated. Before vaccination, pigs of PCVAD-AH had higher viral load in feces (9 and 15 wk), lower IgG and higher IgM (3 wk) and lower lymphocyte counts (9 and 15 wk) suggesting immunosuppression. Vaccination reduced viral load in growers, increased IgG (3 wk) suggesting improved maternal immunity, reduced IgM (3 wk), increased total antibody titers in sows and increased CD79a cells in the pigs.
Keywords
SYNDROME-AFFECTED PIGS, SYNDROME PMWS, POLYMERASE-CHAIN-REACTION, CELL-MEDIATED-IMMUNITY, MULTISYSTEMIC WASTING SYNDROME, REP PROTEINS, RISK-FACTORS, INFECTION, RESPONSES, PRODUCTION PARAMETERS

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Citation

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Chicago
Lopez Rodriguez, Alfonso, Jeroen Dewulf, Tom Meyns, Rubén Del Pozo Sacristán, Christine Andreoni, Anne Goubier, Ludivine Chapat, Catherine Charreyre, François Joisel, and Dominiek Maes. 2016. “Effect of Sow Vaccination Against Porcine Circovirus Type 2 (PCV2) on Virological Profiles in Herds with or Without PCV2 Systemic Disease.” Canadian Veterinary Journal-revue Veterinaire Canadienne 57 (6): 619–628.
APA
Lopez Rodriguez, A., Dewulf, J., Meyns, T., Del Pozo Sacristán, R., Andreoni, C., Goubier, A., Chapat, L., et al. (2016). Effect of sow vaccination against porcine circovirus type 2 (PCV2) on virological profiles in herds with or without PCV2 systemic disease. CANADIAN VETERINARY JOURNAL-REVUE VETERINAIRE CANADIENNE, 57(6), 619–628.
Vancouver
1.
Lopez Rodriguez A, Dewulf J, Meyns T, Del Pozo Sacristán R, Andreoni C, Goubier A, et al. Effect of sow vaccination against porcine circovirus type 2 (PCV2) on virological profiles in herds with or without PCV2 systemic disease. CANADIAN VETERINARY JOURNAL-REVUE VETERINAIRE CANADIENNE. 2016;57(6):619–28.
MLA
Lopez Rodriguez, Alfonso, Jeroen Dewulf, Tom Meyns, et al. “Effect of Sow Vaccination Against Porcine Circovirus Type 2 (PCV2) on Virological Profiles in Herds with or Without PCV2 Systemic Disease.” CANADIAN VETERINARY JOURNAL-REVUE VETERINAIRE CANADIENNE 57.6 (2016): 619–628. Print.
@article{8047986,
  abstract     = {We investigated porcine circovirus type 2 (PCV2) virological profiles in herds affected (PCVAD-AH, n = 5) or non-affected (PCVAD-NAH, n = 4) by PCV2-associated diseases (PCVAD), before and after 1 y of PCV2 gilt and sow vaccination. Fresh feces from the floor (5 pens/age/farm) and 5 blood samples (1/pen) were collected at 3, 9, 15, 21 wk. Individual feces and blood samples were collected from 5 gilts and 15 sows. Sampling was repeated 1 y after vaccination. Quantitative PCR on feces, PCV2 antibodies in blood serum and cell-mediated immunity were investigated. Before vaccination, pigs of PCVAD-AH had higher viral load in feces (9 and 15 wk), lower IgG and higher IgM (3 wk) and lower lymphocyte counts (9 and 15 wk) suggesting immunosuppression. Vaccination reduced viral load in growers, increased IgG (3 wk) suggesting improved maternal immunity, reduced IgM (3 wk), increased total antibody titers in sows and increased CD79a cells in the pigs.},
  author       = {Lopez Rodriguez, Alfonso and Dewulf, Jeroen and Meyns, Tom and Del Pozo Sacrist{\'a}n, Rub{\'e}n and Andreoni, Christine and Goubier, Anne and Chapat, Ludivine and Charreyre, Catherine and Joisel, Fran\c{c}ois and Maes, Dominiek},
  issn         = {0008-5286},
  journal      = {CANADIAN VETERINARY JOURNAL-REVUE VETERINAIRE CANADIENNE},
  language     = {eng},
  number       = {6},
  pages        = {619--628},
  title        = {Effect of sow vaccination against porcine circovirus type 2 (PCV2) on virological profiles in herds with or without PCV2 systemic disease},
  volume       = {57},
  year         = {2016},
}

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