Bacterial Epidemiology and Antimicrobial Resistance : 2007 Veterinary Isolates Final Report- Accessible Version

Table 5. Distribution of MICs and Occurrence of Resistance by Top Serotypes Tested from Chickens, 2007
Antimicrobial	Serotype	%I	%R	95% CI	Distribution (%) of MICs (µg/ml)
Antimicrobial	Serotype	%I	%R	95% CI	0.015	0.03	0.06	0.125	0.25	0.5	1	2	4	8	16	32	64	128	256	512	1024
Amikacin	Kentucky	0	0	0.0-1.1						36.1	58	5.9
	Heidelberg	0	0	0.0-3.3						43	47.9	8.5	0.7
	Enteritidis	0	0	0.0-3.7						39.5	55.6	4.8
	Typhimurium var. 5-	0	0	0.0-8.9						62	36	2
	4,[5],12:i:-	0	0	0.0-9.1						16.3	73.5	10.2
	Typhimurium	0	0	0.0-13.0						42.4	48.5	9.1
	Montevideo	0	0	0.0-20.0							90	10
	Infantis	0	0	0.0-24.1						43.8	50	6.2
	Berta	0	0	0.0-28.3						30.8	61.5	7.7
	Mbandaka	0	0	0.0-32.1							100
	Schwarzengrund	0	0	0.0-32.1						18.2	81.8
Gentamicin	Kentucky	0.2	3.4	2.0-5.7					85.8	9.3	0.9		0.5	0.2	2.5	0.9
	Heidelberg	2.8	11.3	6.8-18.0					73.9	12				2.8	7.7	3.5
	Enteritidis	0	0	0.0-3.7					95.2	4			0.8
	Typhimurium var. 5-	0	2	0.1-12.0					92	6					2
	4,[5],12:i:-	0	0	0.0-9.1					87.8	12.2
	Typhimurium	0	6.1	1.1-21.7					87.9	6.1					6.1
	Montevideo	0	20	6.6-44.3					50	30					5	15
	Infantis	0	0	0.0-24.1					87.5	6.2	6.2
	Berta	0	0	0.0-28.3					92.3				7.7
	Mbandaka	0	9.1	0.5-42.9					63.6	27.3						9.1
	Schwarzengrund	0	9.1	0.5-42.9					63.6	18.2	9.1					9.1
Kanamycin	Kentucky	0	2	1.0-3.9										97.7	0.2			2
	Heidelberg	0	6.3	3.1-12.0										93	0.7		1.4	4.9
	Enteritidis	0	0	0.0-3.7										99.2	0.8
	Typhimurium var. 5-	0	10	3.7-22.6										90				10
	4,[5],12:i:-	0	4.1	0.7-15.2										95.9				4.1
	Typhimurium	0	3	0.2-17.5										93.9	3			3
	Montevideo	0	10	1.8-33.1										85	5			10
	Infantis	0	0	0.0-24.1										100
	Berta	0	0	0.0-28.3										100
	Mbandaka	0	9.1	0.5-42.9										90.9				9.1
	Schwarzengrund	0	9.1	0.5-42.9										90.9				9.1
Streptomycin	Kentucky	N/A	32.5	28.2-37.1												67.5	29.8	2.7
	Heidelberg	N/A	13.4	8.5-20.4												86.6	7	6.3
	Enteritidis	N/A	0.8	0-5.1												99.2	0.8
	Typhimurium var. 5-	N/A	10	3.7-22.6												90	8	2
	4,[5],12:i:-	N/A	8.2	2.7-20.5												91.8	6.1	2
	Typhimurium	N/A	12.1	3.9-29.1												87.9	12.1
	Montevideo	N/A	10	1.8-33.1												90	5	5
	Infantis	N/A	0	0.0-24.1												100
	Berta	N/A	0	0.0-28.3												100
	Mbandaka	N/A	9.1	0.5-42.9												90.9	9.1
	Schwarzengrund	N/A	9.1	0.5-42.9												90.9	9.1
Ampicillin	Kentucky	0	20.1	16.5-24.2							77.9	1.6	0.2	0.2		0.2	19.9
	Heidelberg	0	20.4	14.3-28.1							78.2	1.4					19.7	0.7
	Enteritidis	0	1.6	0.3-6.3							93.5	4	0.8				1.6
	Typhimurium var. 5-	0	50	35.7-64.3							50						50
	4,[5],12:i:-	0	20.4	10.7-34.8							77.6	2					20.4
	Typhimurium	0	18.2	7.6-36.1							72.7	9.1					18.2
	Montevideo	0	0	0.0-20.0							95	5
	Infantis	0	0	0.0-24.1							100
	Berta	0	7.7	0.4-37.9							84.6	7.7					7.7
	Mbandaka	0	0	0.0-32.1							100
	Schwarzengrund	0	0	0.0-32.1							81.8	18.2
Amoxicillin/Clavulanic Acid	Kentucky	0	19.9	16.3-24.0							79	0.7	0.2	0.2		1.8	18.1
	Heidelberg	0	17.6	11.9-25.1							78.9	0.7		2.8		2.8	14.8
	Enteritidis	0	0	0.0-3.7							97.6	0.8		1.6
	Typhimurium var. 5-	2	46	32.1-60.5							50			2	2	4	42
	4,[5],12:i:-	2	16.3	7.8-30.2							75.5	4.1	2		2		16.3
	Typhimurium	0	15.2	5.7-32.7							81.8			3			15.2
	Montevideo	0	0	0.0-20.0							100
	Infantis	0	0	0.0-24.1							100
	Berta	0	0	0.0-28.3							92.3			7.7
	Mbandaka	0	0	0.0-32.1							100
	Schwarzengrund	0	0	0.0-32.1							100
Ceftiofur	Kentucky	0.2	19.9	16.3-24.0				0.2	8.4	63.4	7.7	0.2	0.2	2.3	17.6
	Heidelberg	0	16.9	11.3-24.3						66.9	16.2			1.4	15.5
	Enteritidis	1.6	0	0.0-3.7					0.8	12.1	85.5		1.6
	Typhimurium var. 5-	2	44	30.3-58.7						42	12		2	20	24
	4,[5],12:i:-	0	16.3	7.8-30.2						71.4	12.2			6.1	10.2
	Typhimurium	0	15.2	5.7-32.7				3		42.4	39.4				15.2
	Montevideo	0	0	0.0-20.0						70	30
	Infantis	0	0	0.0-24.1						6.2	93.8
	Berta	0	0	0.0-28.3						84.6	15.4
	Mbandaka	0	0	0.0-32.1						9.1	90.9
	Schwarzengrund	0	0	0.0-32.1						72.7	27.3
Ceftriaxone	Kentucky	13.3	0.2	0-1.4					79.7	0.5			0.5	5.9	11.3	2	0.2
	Heidelberg	12	1.4	0.2-5.5					82.4				0.7	3.5	8.5	3.5	1.4
	Enteritidis	0	0	0.0-3.7					100
	Typhimurium var. 5-	20	0	0.0-8.9					54				4	22	16	4
	4,[5],12:i:-	10.2	0	0.0-9.1					83.7					6.1	8.2	2
	Typhimurium	12.1	0	0.0-13.0					84.8					3	12.1
	Montevideo	0	0	0.0-20.0					100
	Infantis	0	0	0.0-24.1					100
	Berta	0	0	0.0-28.3					100
	Mbandaka	0	0	0.0-32.1					100
	Schwarzengrund	0	0	0.0-32.1					100
Cefoxitin	Kentucky	3.6	16.3	13.1-20.1						0.5	16.9	46.7	14.7	1.4	3.6	13.5	2.7
	Heidelberg	0	16.9	11.3-24.3							19.7	39.4	18.3	5.6		7.7	9.2
	Enteritidis	0	0	0.0-3.7							1.6	65.3	24.2	8.9
	Typhimurium var. 5-	12	30	18.3-44.8							2	22	28	6	12	26	4
	4,[5],12:i:-	0	16.3	7.8-30.2							8.2	46.9	22.4	6.1		14.3	2
	Typhimurium	0	15.2	5.7-32.7							9.1	42.4	21.2	12.1		15.2
	Montevideo	0	0	0.0-20.0								75	20	5
	Infantis	0	0	0.0-24.1									87.5	12.5
	Berta	0	0	0.0-28.3							15.4	61.5	23.1
	Mbandaka	0	0	0.0-32.1									100
	Schwarzengrund	0	0	0.0-32.1								54.5	45.5
Sulfonamides	Kentucky	N/A	3.8	2.3-6.2											43.6	48.5	4.1			3.8
	Heidelberg	N/A	13.4	8.5-20.4											69.7	16.9				13.4
	Enteritidis	N/A	0.8	0-5.1											21.8	64.5	12.9			0.8
	Typhimurium var. 5-	N/A	70	55.2-81.7											20	10				70
	4,[5],12:i:-	N/A	6.1	1.6-17.8											18.4	69.4	6.1			6.1
	Typhimurium	N/A	45.5	28.6-63.4											15.2	36.4	3			45.5
	Montevideo	N/A	10	1.8-33.1											45	45				10
	Infantis	N/A	0	0.0-24.1											18.8	56.2	25
	Berta	N/A	7.7	0.4-37.9											46.2	46.2				7.7
	Mbandaka	N/A	9.1	0.5-42.9												72.7	18.2			9.1
	Schwarzengrund	N/A	9.1	0.5-42.9											27.3	54.5	9.1			9.1
Trimethoprim/Sulfamethoxazole	Kentucky	N/A	0	0.0-1.1				90.7	8.6	0.7
	Heidelberg	N/A	0	0.0-3.3				87.3	10.6	2.1
	Enteritidis	N/A	0	0.0-3.7				91.1	8.9
	Typhimurium var. 5-	N/A	0	0.0-8.9				64	18	16	2
	4,[5],12:i:-	N/A	0	0.0-9.1				87.8	12.2
	Typhimurium	N/A	0	0.0-13.0				75.8	9.1	12.1	3
	Montevideo	N/A	0	0.0-20.0				90	10
	Infantis	N/A	0	0.0-24.1				93.8	6.2
	Berta	N/A	0	0.0-28.3				92.3	7.7
	Mbandaka	N/A	0	0.0-32.1				81.8	18.2
	Schwarzengrund	N/A	0	0.0-32.1				90.9	9.1
Chloramphenicol	Kentucky	0.2	2	1.0-3.9								9.7	82.6	5.4	0.2	0.2	1.8
	Heidelberg	0.7	4.2	1.7-9.3									22.5	72.5	0.7		4.2
	Enteritidis	0	0	0.0-3.7								0.8	50.8	48.4
	Typhimurium var. 5-	2	2	0.1-12.0								4	54	38	2		2
	4,[5],12:i:-	0	0	0.0-9.1									49	51
	Typhimurium	0	0	0.0-13.0								6.1	42.4	51.5
	Montevideo	0	0	0.0-20.0									35	65
	Infantis	6.2	0	0.0-24.1										93.8	6.2
	Berta	0	0	0.0-28.3									69.2	30.8
	Mbandaka	0	0	0.0-32.1										100
	Schwarzengrund	0	0	0.0-32.1									72.7	27.3
Ciprofloxacin	Kentucky	0	0	0.0-1.1	88.9	10.6	0.2	0.2
	Heidelberg	0	0	0.0-3.3	75.4	18.3	6.3
	Enteritidis	0	0	0.0-3.7	55.6	41.1	3.2
	Typhimurium var. 5-	0	0	0.0-8.9	64	32	4
	4,[5],12:i:-	0	0	0.0-9.1	73.5	26.5
	Typhimurium	0	0	0.0-13.0	69.7	30.3
	Montevideo	0	0	0.0-20.0	90	10
	Infantis	0	0	0.0-24.1	87.5	6.2	6.2
	Berta	0	0	0.0-28.3	84.6	15.4
	Mbandaka	0	0	0.0-32.1	81.8	18.2
	Schwarzengrund	0	0	0.0-32.1	81.8	18.2
Nalidixic Acid	Kentucky	N/A	0.2	0-1.4							2.7	66.1	29.3	1.6			0.2
	Heidelberg	N/A	0	0.0-3.3								12	66.2	21.8
	Enteritidis	N/A	0	0.0-3.7								8.1	75.8	16.1
	Typhimurium var. 5-	N/A	0	0.0-8.9							2	22	40	34	2
	4,[5],12:i:-	N/A	0	0.0-9.1								46.9	28.6	22.4	2
	Typhimurium	N/A	0	0.0-13.0								36.4	33.3	27.3	3
	Montevideo	N/A	0	0.0-20.0								25	70	5
	Infantis	N/A	0	0.0-24.1								50	37.5	12.5
	Berta	N/A	0	0.0-28.3								61.5	30.8	7.7
	Mbandaka	N/A	0	0.0-32.1								63.6	27.3	9.1
	Schwarzengrund	N/A	0	0.0-32.1								36.4	36.4	27.3
Tetracycline	Kentucky	2.5	56.9	52.1-61.5									40.6	2.5	0.2	1.4	55.3
	Heidelberg	0.7	12.7	7.9-19.6									86.6	0.7	1.4	1.4	9.9
	Enteritidis	0.8	2.4	0.6-7.4									96.8	0.8	0.8	0.8	0.8
	Typhimurium var. 5-	0	68	53.2-80.1									32			8	60
	4,[5],12:i:-	0	14.3	6.4-27.9									85.7		2	2	10.2
	Typhimurium	0	48.5	31.2-66.2									51.5			3	45.5
	Montevideo	0	10	1.8-33.1									90				10
	Infantis	0	0	0.0-24.1									100
	Berta	7.7	0	0.0-28.3									92.3	7.7
	Mbandaka	0	27.3	7.3-60.7									72.7				27.3
	Schwarzengrund	0	9.1	0.5-42.9									90.9				9.1

Table 7 notes:

95% confidence intervals for percent resistant (%R) were calculated using the Clopper-Pearson exact method

Antimicrobial subclasses and susceptible, intermediate and resistance breakpoints can be found in the antimicrobials and breakpoints section.

N/A- Not applicable