Vaccines for fish in aquaculture

Area of Science:

• Aquaculture
• Veterinary Medicine
• Immunology

Background:

• Vaccination is vital for the success of commercial fish farming, notably in salmon cultivation.
• Commercial vaccines are available for various fish species including salmon, trout, catfish, European seabass, seabream, Japanese amberjack, yellowtail, tilapia, and Atlantic cod.
• Empirically developed vaccines using inactivated bacterial pathogens demonstrate high efficacy in fish.

Purpose of the Study:

• To review currently available commercial fish vaccines.
• To provide insights into the future evolution of the fish vaccine field.
• To highlight research gaps and commercialization challenges.

Main Methods:

• Literature review of commercially available fish vaccines.
• Analysis of efficacy data for existing and emerging fish vaccines.
• Discussion of technological advancements and production hurdles.

Main Results:

• Bacterial vaccines are generally efficacious, but viral and parasite vaccines are limited in commercial availability.
• Significant efficacy data exist for new fish vaccines, with advanced technologies being implemented.
• Salmonids receive disproportionate research and commercial attention relative to their global aquaculture volume.

Conclusions:

• Commercialization of new fish vaccines faces challenges related to cost-effective antigen/adjuvant production and regulatory concerns.
• Limited scientific publications exist, with a focus on salmonids, despite their smaller contribution to global fish farming volume.
• The fish vaccine field is advancing, but requires addressing production, regulatory, and research focus issues for broader impact.