Multidrug-resistant Escherichia coli and Klebsiella pneumoniae isolated from hospital sewage flowing through community sewage system and discharging into the Indian Ocean

Bulletin of the National Research Centre

Table 2 Resistance patterns of MDR E.coli and K. pneumoniae isolates

No. of antibiotics classes	Resistance pattern	No. of isolates	Percentage (%)
3	AMI/QNL/CAR	4	1.48
	AMI/TET/QNL	3	1.11
	PEN/AMN/QNL	2	0.74
	PEN/AMN/SUL	2	0.74
	PEN/CEP/QNL	23	8.49
	PEN/PHE/QNL	8	2.95
	PEN/QNL/CAR	1	0.37
	PEN/QNL/SUL	3	1.11
	PEN/TET/QNL	2	0.74
	PHE/QNL/SUL	2	0.74
	TET/CAR/SUL	3	1.11
4	CEP/AMN/QNL/CAR	3	1.11
	CEP/QNL/CAR/SUL	6	2.21
	PEN/AMN/QNL/CAR	4	1.48
	PEN/AMN/QNL/SUL	2	0.74
	PEN/CEP/AMN/QNL	5	1.85
	PEN/CEP/AMN/SUL	2	0.74
	PEN/CEP/PHE/QNL	2	0.74
	PEN/CEP/QNL/CAR	11	4.06
	PEN/CEP/QNL/SUL	6	2.21
	PEN/CEP/TET/SUL	8	2.95
	PEN/QNL/CAR/SUL	6	2.21
	PEN/TET/QNL/CAR	2	0.74
	PEN/TET/QNL/SUL	21	7.75
5	CEP/TET/QNL/CAR/SUL	4	1.48
	PEN/AMN/QNL/CAR/SUL	2	0.74
	PEN/CEP/AMN/QNL/CAR	7	2.58
	PEN/CEP/AMN/TET/QNL	2	0.74
	PEN/CEP/QNL/CAR/SUL	6	2.21
	PEN/CEP/TET/QNL/CAR	2	0.74
	PEN/CEP/TET/QNL/SUL	38	14.02
	PEN/PHE/QNL/CAR/SUL	2	0.74
	PEN/PHE/TET/QNL/CAR	1	0.37
	PEN/PHE/TET/QNL/SUL	4	1.48
	PEN/TET/QNL/CAR/SUL	2	0.74
6	PEN/CEP/AMN/QNL/CAR/SUL	17	6.27
	PEN/CEP/AMN/TET/QNL/CAR	3	1.11
	PEN/CEP/AMN/TET/QNL/SUL	7	2.58
	PEN/CEP/PHE/TET/QNL/SUL	2	0.74
	PEN/CEP/TET/CAR/QNL/SUL	5	1.85
	PEN/CEP/TET/QNL/CAR/SUL	4	1.48
	PEN/PHE/AMN/TET/QNL/SUL	3	1.11
7	PEN/CEP/AMN/TET/QNL/CAR/SUL	12	4.43
	PEN/CEP/PHE/AMN/TET/QNL/CAR	4	1.48
	PEN/CEP/PHE/TET/QNL/CAR/SUL	7	2.58
	PEN/PHE/AMN/TET/QNL/CAR/SUL	2	0.74
8	PEN/CEP/PHE/AMN/TET/QNL/CAR/SUL	20	7.38
		287	77.35

KEY: PEN phenolics, CEP cephalosporins, PHE phenolics, AMN aminoglycosides, TET tetracyclines, QNL quinolones, CAR carbapenems, SUL sulphonamides