Treatments Dilutions Blood Group
A B O
Blank Control Negative control + + +
Positive control - - -
1:1 - - -
Control Negative control + + +
Positive control - - -
1:1 - - -
BOMPG 1:1 + + +
1:2 + + +
1:4 - + +
1:8 - - +
1:16 - - -
BOMP 1:1 + + +
1:2 + + +
1:4 + + +
1:8 + + +
1:16 - + +
1:32 - - -
Table 2: In vitro haemoagglutinin assay of BOMP vaccine treated C. autratus’s blood with human A, B and O and groups RBC after 30th day immunization after challenged with A. hydrophila .