Zones of inhibition (mm) as measured by disk diffusion and interpretation of resistance phenotype¹^,²^,³.

Tests were performed in duplicate, and both measurements are reported for each organism/antibiotic. 1DS, commercial defibrinated wool sheep blood; DH, defibrinated hair sheep blood; CH, citrated hair sheep blood. 2P, penicillin G 10 U; Cro, ceftriaxone 30 µg; CC, clindamycin 2 µg; E, erythromycin 15 µg; CIP, ciprofloxacin 5 µg; M, meropenem 10 µg; D, doxycycline 30 µg; LVX, levofloxacin 5 µg; SXT, sulfamethoxazole-trimethoprim 1.25 µg/23.75 µg. 3S, sensitive; R, resistant; I, indeterminate; NA, no interpretation available.