YEAST DERIVED VACCINE AGAINST IPNV

摘要

Disclosed are processes for producing a vaccine for use against infectious pancreatic necrosis virus (IPNV) in fish, which process comprises culturing a yeast host cell which expresses, and preferably secretes, an IPNV polypeptide, and formulating the polypeptide as a vaccine (preferably by using, or partially purifying) the supernatant. Such vaccines have advantages over vaccines produced in bacteria. Also disclosed are vaccines based VP3 and VP2var proteins, optionally in combination with antigens protective against other fish diseases. The invention further provides related materials (e.g. primers, vectors and host cells) and methods and uses of the vaccines for prophylaxis and therapy.