Antimicrobial Resistance Profile of E. coli Isolated from Raw Cow Milk and Fresh Fruit Juice in Mekelle, Tigray, Ethiopia

Table 1

Drug sensitivity interpretive zone of inhibition diameters.

Antibiotics	Disc code	Potency	Zone of diameter
			Erythromycin	ERY	15 μg	≥23	14–22	≤13
Cephalothin	CF	30 μg	≥18	15–17	≤14
Norfloxacin	f	50 μg	≥17	13–16	≤12
Sulfamethoxazole-trimethoprim	SXT-TMP	300 μg	≥16	11–15	≤10
Streptomycin	S	10 μg	≥15	12–14	≤11
Kanamycin	KAN	30 μg	≥18	14–17	≤13
Chloramphenicol	CHL	30 μg	≥18		≤18
Tetracycline	TE	30 μg	≥22	19–21	≤19
Gentamicin	GM	10 μg	≥18	-	≤18
Ampicillin	AMP	10 μg	≥15	12–14	≤11
Ciprofloxacin	CIP	5 μg	≥20		≤20
Ceftriaxone	CRO	30 μg	≥23	20–22	≤19
Clindamycin	CC	10 μg	≥21	15–20	≤14

Source: [14]. R: resistant; I: intermediate; S: sensitive.