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Diseases of Aquatic Organisms

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DAO 122:163-170 (2016)  -  DOI:

Development of Streptococcus agalactiae vaccines for tilapia

Guangjin Liu1,*,**, Jielian Zhu1,**, Kangming Chen2, Tingting Gao1, Huochun Yao1, Yongjie Liu1, Wei Zhang1, Chengping Lu

1Key Laboratory of Animal Bacteriology, Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, No.1 Weigang, Nanjing, Jiangsu 210095, PR China
2College of Veterinary Medicine, Kansas State University, Manhattan, Kansas 66506, USA
  *Corresponding author:
**These authors contributed equally

ABSTRACT: Vaccination is a widely accepted and effective method to prevent most pathogenic diseases in aquaculture. Various species of tilapia, especially Nile tilapia Oreochromis niloticus, are farmed worldwide because of their high consumer demand. Recently, the tilapia-breeding industry has been hampered by outbreaks of Streptococcus agalactiae infection, which cause high mortality and huge economic losses. Many researchers have attempted to develop effective S. agalactiae vaccines for tilapia. This review provides a summary of the different kinds of S. agalactiae vaccines for tilapia that have been developed recently. Among the various vaccine types, inactivated S. agalactiae vaccines showed superior protection efficiency when compared with live attenuated, recombinant and DNA vaccines. With respect to vaccination method, injecting the vaccine into tilapia provided the most effective immunoprotection. Freund’s incomplete adjuvant appeared to be suitable for tilapia vaccines. Other factors, such as immunization duration and number, fish size and challenge dose, also influenced the vaccine efficacy.

KEY WORDS: Streptococcus agalactiae · Nile tilapia · Oreochromis niloticus · Vaccine · Relative percent survival · Adjuvant

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Cite this article as: Liu G, Zhu J, Chen K, Gao T and others (2016) Development of Streptococcus agalactiae vaccines for tilapia. Dis Aquat Org 122:163-170.

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