Table 4. Distribution of single and subsets of virulence genes in 102 Aeromonas isolates.

Single virulence gene	Frequency of isolates of the indicated species
	A. veronii (n = 44)	A. jandaei (n = 38)	A. hydrophila (n = 6)	A. caviae(n = 4)	A. salmonicida(n = 2)	A. media (n = 2)	A. allosaccharophila(n = 1)	A. dhakensis (n = 1)	Aeromonas spp. (n = 4)	Total (n = 102)
exu	42	38	6	4	2	0	1	1	4	98
alt	0	0	6 a	0	1	0	0	1	0	8
ser	42	36	6	1	2	2	1	1	4	95
aer	41	35	5	1	2	0	0	1	4	89
act	41 a	6	2	2	2	1	0	0	1	55
ast	0	0	4 a	0	0	0	0	0	0	4
lip	0	2	5 b	4 b	2	2	0	1	0	16
fla	38	27	6	4	2	2	1	1	4	85
ela	11	37	6	4	2	2	0	1	0	63
aexT	26 a	0	5 b	0	1	0	1	0	1	34
aexU	0	0	0	0	0	0	0	0	0	0
dam	0	7	6 a	0	2 b	0	0	1	0	16
enolase	25	32	4	4	2	0	1	1	2	71
ascV	0	0	0	0	0	0	0	0	0	0
hlyA	0	0	0	0	0	0	0	0	0	0
Subset of virulence gene
exu/ser/aer/fla	36	26	5	1	2	0	0	1	4	71
exu/ser/aer	6	9	0	0	0	0	0	0	0	15
exu/aer/fla	2	0	1	0	0	0	0	0	0	3
exu/ser/fla	2	1	0	0	0	0	1 b	0	0	4
ser/aer/fla	1	0	0	0	0	0	0	0	0	1
ser/fla	1	0	0	0	0	2 b	0	0	0	3
exu/fla	0	0	0	3 a	0	0	0	0	0	3
exu only	0	2	0	0	0	0	0	0	0	2

Significantly higher presence of the single/subset of virulence gene:

^a p<0.0001;

^b p<0.05.