Acta Veterinaria et Zootechnica Sinica ›› 2020, Vol. 51 ›› Issue (5): 1083-1090.doi: 10.11843/j.issn.0366-6964.2020.05.019

• PREVENTIVE VETERINARY MEDICINE • Previous Articles     Next Articles

Comparison of Adjuvant for Inactivated Swine Erysipelas Vaccines against Erysipelothrix rhusiopathiae

PEI Shixuan1, SONG Jijian1, HAN Yinong1, XUE Yun1, WANG Chen1,2, SI Lifang1,2, ZHAO Zhanqin1,2*   

  1. 1. Laboratory of Veterinary Biologics Engineering, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China;
    2. Key-Disciplines Lab of Safety of Environment and Animal Product, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
  • Received:2019-10-14 Online:2020-05-25 Published:2020-05-16

Abstract: The objective of this study was to screen the adjuvant suitable for an inactivated vaccine against Erysipelothrix rhusiopathiae. The five inactivated vaccines of mineral oil adjuvant (referred as oil vaccine), aluminum hydroxide adjuvant (referred as alh vaccine), ISA201 dual phase oil emulsion adjuvant (referred as ISA201vaccine), GEL02 water-soluble polymer adjuvant (referred as GEL vaccine), and IMS1313 water-soluble nano-sized adjuvant (referred as IMS1313 vaccine) were prepared, which the antigens of that were all inactivated bacteria of E. rhusiopathiae strain HG-1, isolated and identified as serovar 1a. The immunoprotection test results of the mouse showed that after 14 days of second immunization, mice were intraperitoneally challenged with 4LD50 HG-1 solution, giving the protection rates of the five vaccines 100% (7/7), 14% (1/7), 14% (1/7), 71% (5/7) and 14% (1/7), respectively. According to the above test results, the safety test of piglets was carried out by using alh vaccine and GEL vaccine, and the results showed that the side effects of the two adjuvant vaccines were small. Fourteen days after the second immunization, groups of pigs vaccinated with alh vaccine and GEL vaccine were challenged intravenously with 16 LD100 of HG-1 solution, and the results showed that alh vaccine and GEL vaccine provide 60% (3/5) and 100% (5/5) protective efficacy, respectively. This study identified GEL adjuvant as the optimal adjuvant for the development of an inactivated vaccine against swine erysipelas.

Key words: swine, Erysipelothrix rhusiopathiae, vaccine, adjuvant

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