Table 7. Bacteria isolated from water samples collected from 15 canals in Bangkok and a central province and from 25 stagnant water sources in food animal farms in an eastern province and a northern province.

Bacteria	Total canal water (n  =  15)	Bangkok (n  =  10)	Central province (n  =  5)	Total stagnant water (n  =  25)	Eastern province (n  =  10)	Northern province (n  =  15)
Enterobacteriaceae	8/15 (53.3%)	5/10 (50%)	3/5 (60%)	21/25 (84%)	9/10 (90%)	12/15 (80%)
ESBL-producing isolates	3/8 (37.5%)	3/5 (60%)	–	3/21 (14.3%)	3/9 (33.3%)	0/12 (0%)
Escherichia coli	4/8 (50%)	4/5 (80%)	–	9/21 (42.9%)	6/9 (66.7%)	3/12 (25%)
ESBL-producing isolates	1/4 (25%)	1/4 (25%)	–	3/9 (33.3%)	3/6 (50%)	0/3 (0%)
Enterobacter spp.	2/8 (25%)	2/5 (100%)	–	5/21 (23.8%)	2/9 (22.2%)	3/12 (25%)
ESBL-producing isolates	2/2 (100%)	2/2 (100%)	–	0/5 (0%)	0/2 (0%)	0/3 (0%)
Klebsiella spp.	7/8 (87.5%)	5/5 (100%)	2/3 (66.7%)	11/21 (52.4%)	4/9 (44.4%)	7/12 (58.3%)
ESBL-producing isolates	3/7 (42.9%)	3/5 (60%)	–	0/11 (0%)	0/4 (0%)	0/7 (0%)
Acinetobacter baumannii	8/13 (61.5%)	7/8 (87.5%)	1/5 (20%)	6/9 (66.7%)	–	6/7 (85.7%)
Pseudomonas aeruginosa	4/13 (30.8%)	1/8 (12.5%)	3/5 (60%)	2/9 (22.2%)	1/2 (50%)	1/7 (14.3%)

ESBL: Extended-spectrum beta-lactamase.