Escherichia coli Strains Isolated from the Uteri Horn, Mouth, and Rectum of Bitches Suffering from Pyometra: Virulence Factors, Antimicrobial Susceptibilities, and Clonal Relationships among Strains

Table 5

Prevalence of antimicrobial resistance among 70 E. coli isolates from 6 bitches suffering pyometra.

Antimicrobial drug	Uteri (pus); (𝑛=25)	Mouth (saliva); (𝑛=26)	Rectum (feces); (𝑛=19)
Norfloxacin	0* (0.0%)**	5 (19.2%)	1 (5.2%)
Cefoxitin	0 (0.0%)	0 (0.0%)	0 (0.0%)
Tobramycin	0 (0.0%)	7 (26.9%)	6 (31.5%)
Ciprofloxacin	2 (8.0%)	1 (3.8%)	2 (10.5%)
Gentamicin	3 (12.0%)	6 (23.0%)	5 (26.3%)
Ceftriaxone	5 (20.0%)	5 (19.2%)	7 (36.8%)
Tetracycline	8 (32.0%)	22 (84.6%)	12 (63.1%)
Amikacin	10 (40.0%)	10 (38.4%)	11 (57.8%)
Nitrofurantoin	10 (40.0%)	16 (61.5%)	15 (78.9%)
Ampicillin	14 (56.0%)	22 (84.6%)	9 (47.3%)
Nalidixic acid	14 (56.0%)	22 (84.6%)	8 (42.1%)
Cephalothin	17 (68.0%)	17 (65.3%)	13 (68.4%)

∗Number of isolates; **percentage.