Phenotypic antimicrobial resistance in Escherichia coli strains isolated from swine husbandries in North Western Germany – temporal patterns in samples from laboratory practice from 2006 to 2017

Table 6 Temporal development in AMR for neomycin

	Number of isolates with MIC values (mg/ml) of…							S		I		R
	4	16	32	64	n	MIC ₅₀	MIC ₉₀	n	%	n	%	n	%
Year
2006	242	11	25	32	310	4.00	64.00	242	78.06	11	3.55	57	18.39
2007	319	8	24	30	381	4.00	32.00	319	83.73	8	2.10	54	14.17
2008	266	4	15	24	309	4.00	32.00	266	86.08	4	1.29	39	12.62
2009	227	1	9	33	270	4.00	64.00	227	84.07	1	0.37	42	15.56
2010	224	3	15	28	270	4.00	64.00	224	82.96	3	1.11	43	15.93
2011	218	3	20	25	266	4.00	32.00	218	81.95	3	1.13	45	16.92
2012	227	.	2	32	261	4.00	64.00	227	86.97	.	.	34	13.03
2013	251	1	13	31	296	4.00	64.00	251	84.80	1	0.34	44	14.86
2014	175	2	9	20	206	4.00	32.00	175	84.95	2	0.97	29	14.08
2015	175	1	3	15	194	4.00	4.00	175	90.21	1	0.52	18	9.28
2016	145	6	3	13	167	4.00	16.00	145	86.83	6	3.59	16	9.58
2017	31	1	3	4	39	4.00	64.00	31	79.49	1	2.56	7	17.95
Total	2500	41	141	287	2969	4.00	32.00	2500	84.20	41	1.38	428	14.42

ISSN: 1746-6148