Comparison of Extended-Spectrum β-Lactamase-Producing Escherichia coli Isolates from Drinking Well Water and Pit Latrine Wastewater in a Rural Area of China

Table 2

Resistance profiles of ESBL-producing E. coli from well water and pit latrine wastewater.

Antibiotics	Prevalence of resistance isolates, number (column%)
	Well water ()	Wastewater ()
Ampicillin (AMP)	23 (100)	40 (100)
Piperacillin (PRL)	18 (78.3)	28 (70.0)
Amoxicillin/clavulanic acid (AMC)	13 (56.5)	11 (32.5)
Cephalothin (CF)	23 (100)	40 (100)
Cefuroxime (CXM)	22 (95.6)	39 (97.5)
Ceftazidime (CAZ)	6 (26.1)	18 (45.0)
Ceftriaxone (CRO)	9 (39.1)	20 (50.0)
Cefepime (CPM)	3 (13.0)	3 (7.5)
Imipenem (IPM)	0 (0)	0 (0)
Meropenem (MEC)	0 (0)	0 (0)
Amikacin (AMK)	0 (0)	4 (10.0)
Gentamicin (GM)	7 (30.4)	25 (62.5)
Nalidixic acid (NA)	13 (56.5)	27 (67.5)
Ciprofloxacin (CIP)	10 (43.8)	29 (72.5)
Tetracycline (TE)	18 (78.3)	23 (57.5)
Chloramphenicol (C)	7 (30.4)	15 (37.5)