Table 3.

Percentage of multidrug resistant E. coli isolates obtained from drinking-water sources

Sources (number of isolates tested)	Number and (%) of resistance for multiple antibiotics
	2–3	4–6	≥7 P
Dry-arid (447)	38 (8.5)	48 (10.7)	10 (2.2)
Open sources (352)	27 (7.6)	39 (11.2)	9 (2.5) 0.199
Closed sources (95)	15 (15.38)	7 (7.7)	0
Lush-mountainous (1,372)	182 (13.3)	189 (13.8)	23 (1.7)
Open sources (1,010)	147 (14.6)	145 (14.4)	9 (0.9) 0.17
Closed sources (362)	38 (10.6)	44 (12.04)	15 (4.2)

Antibiotics tested included ampicillin, amoxicillin/clavulanic acid, ceftazidime, ciprofloxacin, chloramphenicol, kanamycin, streptomycin, sulfamethoxazole, tetracycline, and trimethoprim