No. of
strains
Strain code with fish source Agglutination
Distribution of antiserum
10-fold 20-fold
16 P.sarana (MP811), O.mossambicus (MTi811), P.hypophthalmus(MPa911), M.nundus (MV811), A. testudineus (MK911), L. rohita (MR911), C.punctatus (MT1011), L. rohita(TR911), O.mossambicus (TTi911), A. testudineus (TK811), P.sarana (TP1011), P.sarana (GP711), O.mossambicus (GTi811), A. testudineus (GKh811), L. rohita(GR911) and  C.punctatus (GT911) + +
4 L. bata (GB1011), A. testudineus(RK811), C.mrigala (RM811) and C.punctatus(RCC1011) + -
5 C.punctatus (ST811), P.sarana (SP911), M.nundus (DV711), O.mossambicus ( NTTi911) and P.hypophthalmus(NPa811) - -
- : Negative, + : Positive
Table 3: Slide agglutination of 25 isolates of A. hydrophila with the anti-A. hydrophila AQ508 rabbit serum.