Characterization of Escherichia coli virulence genes, pathotypes and antibiotic resistance properties in diarrheic calves in Iran

Table 4 Antibiotic resistance profile of E. coli pathotypes isolated from diarrheic calves (Disk diffusion method)

	P10*	TE30	S10	C30	SXT	GM10	NFX5	L2	CF30	CIP5	TMP5	F/M300	AM10
Non detected (211)	211	209	210	145	201	179	161	196	102	112	189	32	126
ETEC (179)	179	179	175	126	152	150	101	169	118	120	72	18	116
STEC (218)	218	208	214	192	198	167	123	201	106	146	123	96	202
NTEC (22)	22	22	20	2	8	6	2	18	2	2	8	5	4
Total (630)	630 (100%) A**	618 (98.09%) C	619 (98.25%) B	465 (73.80%)	559 (90.31%) E	502 (79.68%)	387 (61.42%)	584 (92.69%)	328 (52.06%) a,b	380 (60.31%)	392 (62.22%)	151 (23.96%) a,b,c,d,e	448 (71.11%)

*In this table P10 = penicillin (10 μ/disk); TE30 = tetracycline (30 μg/disk); S10 = streptomycin (10 μg/disk); C30 = chloramphenicol (30 μg/disk); SXT = sulfamethoxazol (25 μg/disk); GM10 = gentamycin (10 μg/disk); NFX5 = enrofloxacin (5 μg/disk); L2 = lincomycin (2 μg/disk); CF30 = cephalothin (30 μg/disk); CIP5 = ciprofloxacin (5 μg/disk); TMP5 = trimethoprim (5 μg/disk); F/M300 = nitrofurantoin (300 μg/disk); AM10 = ampicillin (10 μ/disk).
**Similar capital and small letters in rows have a significant differences about P <0.05.

ISSN: 0717-6287