Protection of rainbow trout against infectious hematopoietic necrosis virus four days after specific or semi-specific DNA vaccination

Autor: William D. Shewmaker, Eric D. Anderson, Serge Corbeil, Scott E. LaPatra, Gael Kurath, Gerald R. Jones, Niels Lorenzen
Rok vydání: 2001
Předmět:
Zdroj: Vaccine. 19:4011-4019
ISSN: 0264-410X
DOI: 10.1016/s0264-410x(01)00113-x
Popis: A DNA vaccine against a fish rhabdovirus, infectious hematopoietic necrosis virus (IHNV), was shown to provide significant protection as soon as 4 d after intramuscular vaccination in 2 g rainbow trout (Oncorhynchus mykiss) held at 15 degrees C. Nearly complete protection was also observed at later time points (7, 14, and 28 d) using a standardized waterborne challenge model. In a test of the specificity of this early protection, immunization of rainbow trout with a DNA vaccine against another fish rhabdovirus, viral hemorrhagic septicemia virus, provided a significant level of cross-protection against IHNV challenge for a transient period of time, whereas a rabies virus DNA vaccine was not protective. This indication of distinct early and late protective mechanisms was not dependent on DNA vaccine doses from 0.1 to 2.5 microg.
Databáze: OpenAIRE