Assessing PCV2 antibodies in field pigs vaccinated with different porcine circovirus 2 vaccines using two commercial ELISA systems.
- Author:
Min Kyoung SHIN
1
;
Seung Hyun YOON
;
Myung Hwui KIM
;
Young Soo LYOO
;
Seung Won SUH
;
Han Sang YOO
Author Information
- Publication Type:Original Article ; Research Support, Non-U.S. Gov't
- Keywords: enzyme-linked immunosorbent assay; pigs; porcine circovirus 2; serology
- MeSH: Aging; Animals; Antibodies, Viral/*blood; Circovirus/*classification/immunology; Enzyme-Linked Immunosorbent Assay/methods/*veterinary; Female; Porcine Postweaning Multisystemic Wasting Syndrome/blood/immunology/*prevention & control; Republic of Korea/epidemiology; Swine; Swine Diseases/*prevention & control/virology; Viral Vaccines/*immunology
- From:Journal of Veterinary Science 2015;16(1):25-29
- CountryRepublic of Korea
- Language:English
- Abstract: Porcine circovirus type 2 (PCV2) is the primary causative agent for post-weaning, multisystemic, wasting syndrome. Consequently, serologic detection of and vaccination against PCV2 are important for the swine industry. Among several serological tests, the enzyme-linked immunosorbent assay (ELISA) is commonly used to measure anti-PCV2 antibody levels. In the present study, we used two commercial ELISA systems to comparatively evaluate anti-PCV2 antibodies in field pigs treated with three different PCV2 vaccines. Among a total of 517 serum samples, the results of the two ELISAs were fully concordant for 365 positive and 42 negative samples, indicating 78.7% agreement. In addition, the Pearson coefficient (0.636) indicated a moderate correlation between data from the two ELISAs. Results from the farms with pigs vaccinated with the three different PCV2 vaccines demonstrated that most of the vaccinated animals underwent seroconversion. However, the increase and duration of antibody titers varied depending on the vaccine, the presence of maternal antibodies, and the vaccination program. PCV2 serologic status and anti-PCV2 antibody levels of herds from this study could be utilized to determine the best timing for vaccination and assessing vaccination compliance.
