Table 2: Antimicrobial resistance patterns of staphylococci from canine pyoderma cases in Grenada, West Indies.

Antimicrobial drug resistanceNo. (%) of S. pseudintermedius
( )
No. (%) of S. hominis
( )
No. (%) of other staphylococcia
( )
No. (%) total
( )

Beta-lactamsb
 Amoxicillin-clavulanic acid0 (0.0)0 (0.0)0 (0.0)0 (0.0)
 Cefovecin0 (0.0)0 (0.0)0 (0.0)0 (0.0)
 Cefoxitin0 (0.0)0 (0.0)0 (0.0)0 (0.0)
 Cefpodoxime0 (0.0)0 (0.0)0 (0.0)0 (0.0)
 Cephalothin0 (0.0)0 (0.0)0 (0.0)0 (0.0)
 Ampicillin1 (3.6)0 (0.0)0 (0.0)1 (2.3)
 Penicillin4 (14.3)1 (14.3)0 (0.0)5 (11.6)
Other drugs
 Chloramphenicol0 (0.0)0 (0.0)0 (0.0) 0 (0.0)
 Enrofloxacin0 (0.0)0 (0.0)0 (0.0)0 (0.0)
 Clindamycin1 (3.6)2 (33.3)0 (0.0)3 (7.0)
 Erythromycin1 (3.6)2 (33.3)0 (0.0)3 (7.0)
 Gentamicin1 (3.6)2 (33.3)0 (0.0)3 (7.0)
 Neomycin1 (3.6)2 (33.3)0 (0.0)3 (7.0)
 Sulfamethoxazole-trimethoprim4 (14.3)2 (28.6)0 (0.0)6 (14.0)
 Tetracycline9 (32.1)4 (57.1)0 (0.0)13 (30.2)

includes the following isolates: S. lugdunensis (2); S. capitis, S. epidermidis, S. schleiferi subsp. coagulans, and S. xylosus (1 each); and unspeciated staphylococci (3).
bMethicillin resistance (tested with oxacillin disk and a chromogenic medium) was not detected in any of the S. pseudintermedius or S. schleiferi isolates.