Ja. Montaraz et al., A NOVEL EXPERIMENTAL-MODEL FOR THE STUDY AND EVALUATION OF EXPERIMENTAL VACCINES TO ACTINOBACILLUS-PLEUROPNEUMONIAE, Veterinary immunology and immunopathology, 41(3-4), 1994, pp. 375-380
A novel experimental model to study immune protection to Actinobacillu
s pleuropneumoniae in the rat is described. One-week-old rats born fro
m immunized mothers were challenged intraperitoneally with a suspensio
n of A. pleuropneumoniae serotype 1 and mortality recorded up to 48 h
postinfection. Immunization with inactivated whole cells (IWC) or a wh
ole cell extract (WCE) from A. pleuropneumoniae serotype 1 resulted in
protection against an homologous challenge, particularly in the case
of WCE where protection was observed at the highest challenge dose of
approximately 1000 50% lethal doses.