Escherichia coli

Interpretation notes:
- Abbreviation: ESBL denotes "extended-spectrum beta-lactamase"
- Non-susceptibility to colistin: Not tested until 2016/2017; Initially defined as growth in colistin 2 mg/L, subsequently in 1 mg/L from 2018/2019 onwards

Cattle

Specimens were obtained from animals in slaughterhouse in Hong Kong.

Year (September to August)	Total	Resistant phenotype				No. of isolates non-susceptible*
		Carbapenem		ESBL+		Ampicillin		Amoxycillin-clavulanate		Tetracycline		Cotrimoxazole		Nalidixic acid		Ciprofloxacin		Chloramphenicol		Gentamicin		Netilmicin		Amikacin		Nitrofurantoin		Colistin
		No.	NDM	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%
2010 / 2011	96	0	0	52	54	53	55	8	8	48	50	27	28	35	36	20	21	13	14	16	17	3	3	0	0	2	2	-	-
2011 / 2012	98	0	0	47	48	48	49	7	7	43	44	29	30	36	37	14	14	13	13	16	16	1	1	0	0	3	3	-	-
2012 / 2013	110	0	0	64	58	74	67	7	6	62	56	46	42	43	39	18	16	17	15	8	7	0	0	0	0	1	1	-	-
2013 / 2014	127	0	0	77	61	82	65	14	11	62	49	45	35	54	42	23	18	14	11	13	10	3	2	0	0	13	10	-	-
2014 / 2015	108	0	0	67	62	76	70	25	23	54	50	43	40	54	50	22	20	25	23	8	7	5	5	3	3	7	6	-	-
2015 / 2016	137	0	0	95	69	101	74	28	20	79	58	62	45	80	58	25	18	23	17	17	12	9	7	3	2	8	6	-	-
2016 / 2017	151	0	0	101	67	104	69	30	20	91	60	71	47	85	56	48	32	47	31	34	23	16	11	1	1	8	5	3	2
2017 / 2018	159	0	0	99	62	113	71	27	17	104	65	69	43	62	39	30	19	63	40	47	30	3	2	0	0	6	4	0	0
2018 / 2019	135	0	0	74	55	97	72	25	19	77	57	42	31	35	26	13	10	36	27	12	9	1	1	0	0	5	4	1	1
2019 / 2020	177	1	1	119	67	152	86	32	18	95	54	65	37	65	37	32	18	51	29	28	16	2	1	1	1	8	5	0	0
2020 / 2021	160	0	0	104	65	131	82	43	27	113	71	78	49	79	49	76	48	89	56	46	29	4	3	0	0	1	1	0	0
2021 / 2022	157	4	4	125	80	131	83	38	24	96	61	79	50	74	47	110	70	72	46	41	26	4	3	0	0	7	4	0	0
2022 / 2023	118	0	0	80	68	95	81	38	32	74	63	61	52	69	58	69	58	59	50	40	34	-	-	10	8	3	3	1	1

Pig

Specimens were obtained from animals in slaughterhouse in Hong Kong.

Year (September to August)	Total	Resistant phenotype					No. of isolates non-susceptible*
		Carbapenem			ESBL+		Ampicillin		Amoxycillin-clavulanate		Tetracycline		Cotrimoxazole		Nalidixic acid		Ciprofloxacin		Chloramphenicol		Gentamicin		Netilmicin		Amikacin		Nitrofurantoin		Colistin
		No.	NDM	OXA-48	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%
2010 / 2011	185	0	0	0	108	58	154	83	22	12	162	88	129	70	137	74	60	32	121	65	76	41	38	21	13	7	28	15	-	-
2011 / 2012	205	0	0	0	105	51	177	86	45	22	173	84	151	74	150	73	68	33	127	62	72	35	25	12	13	6	32	16	-	-
2012 / 2013	239	0	0	0	138	58	204	85	36	15	212	89	179	75	187	78	86	36	166	69	90	38	26	11	10	4	36	15	-	-
2013 / 2014	214	0	0	0	114	53	186	87	56	26	192	90	152	71	159	74	77	36	144	67	68	32	21	10	12	6	50	23	-	-
2014 / 2015	224	0	0	0	123	55	194	87	77	34	192	86	173	77	176	79	89	40	158	71	75	33	33	15	4	2	57	25	-	-
2015 / 2016	187	5	5	0	91	49	156	83	63	34	163	87	131	70	145	78	71	38	138	74	61	33	29	16	5	3	51	27	-	-
2016 / 2017	217	1	1	0	119	55	187	86	73	34	196	90	160	74	170	78	73	34	141	65	75	35	40	18	11	5	65	30	24	11
2017 / 2018	281	14	14	0	167	59	254	90	110	39	266	95	205	73	205	73	88	31	218	78	98	35	22	8	9	3	74	26	6	2
2018 / 2019	241	7	7	0	114	47	219	91	103	43	227	94	178	74	159	66	66	27	167	69	72	30	14	6	8	3	20	8	5	2
2019 / 2020	308	23	19	4	148	48	295	96	129	42	293	95	204	66	201	65	92	30	240	78	101	33	23	8	7	2	21	7	5	2
2020 / 2021	258	21^#	15	7	116	45	237	92	89	34	242	94	172	67	168	65	131	51	194	75	93	36	14	5	5	2	26	10	3	1
2021 / 2022	287	42	36	6	136	47	255	89	130	45	256	89	179	62	169	59	167	58	204	71	96	33	13	5	8	3	20	7	4	1
2022 / 2023	291	57	53	4	141	48	268	92	127	44	256	88	186	64	175	60	165	57	225	77	78	27	-	-	12	4	22	8	13	4

^#One isolate exhibited both NDM and OXA-48 phenotype

Chicken

Specimens were obtained from animals in wet markets in Hong Kong.

Year (September to August)	Total	Resistant phenotype				No. of isolates non-susceptible*
		Carbapenem		ESBL+		Ampicillin		Amoxycillin-clavulanate		Tetracycline		Cotrimoxazole		Nalidixic acid		Ciprofloxacin		Chloramphenicol		Gentamicin		Netilmicin		Amikacin		Nitrofurantoin		Colistin
		No.	NDM	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%
2010 / 2011	265	0	0	219	83	239	90	38	14	242	91	177	67	252	95	214	81	109	41	73	28	8	3	4	1	39	15	-	-
2011 / 2012	259	0	0	216	83	239	92	64	25	243	94	197	76	255	98	191	74	160	62	112	43	41	16	18	7	55	21	-	-
2012 / 2013	295	0	0	245	83	263	89	60	20	251	85	205	70	265	90	207	70	186	63	137	46	77	26	59	20	42	14	-	-
2013 / 2014	407	0	0	369	91	390	96	95	23	312	77	217	53	346	85	261	64	177	43	175	43	45	11	10	2	91	22	-	-
2014 / 2015	346	0	0	321	93	335	97	126	36	308	89	232	67	311	90	217	63	132	38	202	58	76	22	9	3	96	28	-	-
2015 / 2016	309	0	0	273	88	283	92	89	29	268	87	204	66	276	89	151	49	92	30	182	59	47	15	0	0	72	23	-	-
2016 / 2017	258	0	0	225	87	232	90	73	28	181	70	158	61	202	78	128	50	111	43	127	49	31	12	4	2	99	38	1	0
2017 / 2018	206	0	0	159	77	173	84	34	17	155	75	86	42	174	84	83	40	98	48	84	41	16	8	8	4	48	23	1	0
2018 / 2019	303	4	4	236	78	286	94	96	32	243	80	182	60	253	84	196	65	224	74	194	64	87	29	12	4	40	13	1	0
2019 / 2020	351	0	0	312	89	329	94	91	26	254	72	193	55	239	68	152	43	204	58	139	40	30	9	3	1	90	26	0	0
2020 / 2021	343	4	4	303	88	328	96	96	28	257	75	236	69	264	77	247	72	235	69	183	53	41	12	1	0	75	22	8	2
2021 / 2022	293	20	20	244	83	276	94	88	30	216	74	208	71	242	83	234	80	229	78	197	67	52	18	8	3	51	17	5	2
2022 / 2023	366	0	0	330	90	357	98	85	23	301	82	206	56	309	84	236	64	323	88	288	79	-	-	35	10	52	14	15	4

Rodent

Specimens were obtained from urban animals in Hong Kong.

Year (September to August)	Total	Resistant phenotype			No. of isolates non-susceptible*
		Carbapenem	ESBL+		Ampicillin		Amoxycillin-clavulanate		Tetracycline		Cotrimoxazole		Nalidixic acid		Ciprofloxacin		Chloramphenicol		Gentamicin		Netilmicin		Amikacin		Nitrofurantoin		Colistin
		No.	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%
2010 / 2011	92	0	30	33	39	42	5	5	23	25	17	19	27	29	14	15	15	16	13	14	0	0	0	0	4	4	-	-
2011 / 2012	52	0	16	31	25	48	4	8	13	25	7	13	15	29	0	0	4	8	2	4	0	0	0	0	0	0	-	-
2012 / 2013	50	0	15	30	21	42	4	8	13	26	10	20	16	32	8	16	12	24	5	10	1	2	1	2	1	2	-	-
2013 / 2014	42	0	22	52	27	64	7	17	16	38	16	38	16	38	7	17	11	26	7	17	3	7	0	0	5	12	-	-
2014 / 2015	49	0	9	18	18	37	4	8	10	20	9	18	8	16	4	8	6	12	2	4	1	2	0	0	2	4	-	-
2015 / 2016	54	0	27	50	30	56	7	13	24	44	22	41	28	52	16	30	16	30	5	9	2	4	0	0	4	7	-	-
2016 / 2017	29	0	4	14	6	21	3	10	4	14	5	17	5	17	3	10	5	17	4	14	3	10	0	0	0	0	0	0
2017 / 2018	35	0	15	43	17	49	9	26	15	43	11	31	13	37	10	29	14	40	7	20	0	0	0	0	2	6	1	3
2018 / 2019	13	0	6	46	6	46	0	0	6	46	6	46	7	54	2	15	1	8	1	8	0	0	0	0	1	8	0	0
2019 / 2020	29	0	14	48	23	79	9	31	12	41	9	31	10	34	6	21	10	34	2	7	0	0	0	0	1	3	1	3
2020 / 2021	26	0	17	65	18	69	6	23	16	62	11	42	16	62	13	50	14	54	2	8	0	0	0	0	1	4	0	0
2021 / 2022	66	0	16	24	28	42	13	20	21	32	9	14	20	30	16	24	14	21	4	6	0	0	0	0	2	3	1	2
2022 / 2023	60	1	13	22	30	50	15	25	27	45	21	35	18	30	28	47	22	37	6	10	-	-	5	8	2	3	0	0

Cat

Specimens were obtained from stray animals in Hong Kong.

Year (September to August)	Total	Resistant phenotype			No. of isolates non-susceptible*
		Carbapenem	ESBL+		Ampicillin		Amoxycillin-clavulanate		Tetracycline		Cotrimoxazole		Nalidixic acid		Ciprofloxacin		Chloramphenicol		Gentamicin		Netilmicin		Amikacin		Nitrofurantoin		Colistin
		No.	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%
2010 / 2011	181	0	15	8	36	20	5	3	44	24	29	16	38	21	6	3	10	6	9	5	4	2	1	1	0	0	-	-
2011 / 2012	156	0	20	13	40	26	7	4	29	19	20	13	20	13	10	6	11	7	11	7	1	1	0	0	3	2	-	-
2012 / 2013	140	0	15	11	32	23	1	1	24	17	11	8	19	14	3	2	10	7	3	2	0	0	0	0	0	0	-	-
2013 / 2014	175	0	14	8	49	28	11	6	37	21	24	14	26	15	6	3	24	14	8	5	6	3	2	1	5	3	-	-
2014 / 2015	153	0	11	7	35	23	10	7	32	21	13	8	20	13	6	4	14	9	7	5	5	3	0	0	6	4	-	-
2015 / 2016	163	0	23	14	50	31	13	8	45	28	19	12	30	18	7	4	13	8	12	7	9	5	0	0	4	2	-	-
2016 / 2017	146	0	20	14	53	36	14	10	34	23	24	16	37	25	13	9	13	9	21	14	7	5	2	1	8	6	1	1
2017 / 2018	104	0	14	13	27	26	10	10	31	30	15	14	27	26	3	3	16	15	9	9	3	3	2	2	1	1	0	0
2018 / 2019	96	0	9	9	29	30	7	7	26	27	17	18	22	23	4	4	9	9	2	2	0	0	1	1	3	3	2	2
2019 / 2020	28	0	0	0	19	68	1	4	9	32	5	18	4	14	1	4	4	14	2	7	0	0	0	0	0	0	0	0
2020 / 2021	3	0	0	0	1	33	0	0	0	0	0	0	1	33	1	33	0	0	1	33	0	0	0	0	0	0	0	0
2021 / 2022	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2022 / 2023	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Dog

Specimens were obtained from stray animals in Hong Kong.

Year (September to August)	Total	Resistant phenotype			No. of isolates non-susceptible*
		Carbapenem	ESBL+		Ampicillin		Amoxycillin-clavulanate		Tetracycline		Cotrimoxazole		Nalidixic acid		Ciprofloxacin		Chloramphenicol		Gentamicin		Netilmicin		Amikacin		Nitrofurantoin		Colistin
		No.	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%	No.	%
2010 / 2011	196	0	48	24	70	36	11	6	59	30	32	16	48	24	17	9	25	13	26	13	10	5	6	3	6	3	-	-
2011 / 2012	171	0	38	22	72	42	13	8	64	37	37	22	55	32	34	20	24	14	21	12	2	1	0	0	4	2	-	-
2012 / 2013	272	0	57	21	101	37	17	6	97	36	68	25	86	32	30	11	46	17	30	11	7	3	2	1	9	3	-	-
2013 / 2014	196	0	42	21	83	42	10	5	61	31	36	18	61	31	6	3	22	11	22	11	1	1	0	0	3	2	-	-
2014 / 2015	166	0	33	20	67	40	15	9	55	33	37	22	43	26	14	8	23	14	26	16	7	4	1	1	6	4	-	-
2015 / 2016	186	0	52	28	87	47	30	16	62	33	42	23	52	28	24	13	27	14	27	15	15	8	4	2	7	4	-	-
2016 / 2017	201	0	63	31	96	48	46	23	66	33	55	27	77	38	18	9	40	20	36	18	13	6	3	2	6	3	7	4
2017 / 2018	184	0	34	18	59	32	26	14	60	33	30	16	48	26	16	9	23	12	17	9	2	1	1	1	2	1	2	1
2018 / 2019	136	0	28	21	56	41	24	18	47	35	35	26	34	25	8	6	19	14	9	7	1	1	0	0	6	4	2	2
2019 / 2020	64	0	26	41	48	75	14	22	31	48	23	36	22	34	17	27	22	34	10	16	4	6	0	0	3	5	0	0
2020 / 2021	9	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
2021 / 2022	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2022 / 2023	0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Download Escherichia coli (in CSV format)