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 3

Distribution of β-lactamase genes by source group among ESBL-producing E. coli isolates from well water and pit latrine wastewater. Note: TEM-1 is not an ESBL.

β-Lactamases genes	Prevalence of β-lactamases genes, number (column%)
	Well water ()	Wastewater ()
	0	4 (10.0%)
	6 (26.1%)	5 (12.5%)
	8 (34.8%)	19 (47.5%)
	3 (13.0%)	6 (15.0%)
	5 (21.7%)	3 (7.5%)
	15 (65.2%)	30 (75.0%)
	0	0