Table 4. Antibiotic sensitivity of Listeria monocytogenes isolates from smoked ducks (n=7)

Antibiotics L. monocytogenes isolates Sensitivity of the isolates n (%)1)
SMFM 2018 SD 1-1 SMFM 2018 SD 4-1 SMFM 2018 SD 4-2 SMFM 2018 SD 5-2 SMFM 2018 SD 5-3 SMFM 2018 SD 6-2 SMFM 2018 SD 7-1 Susceptible Intermediate Resistant
Ciprofloxacin S S S S S S S 7 (100)
Clindamycin R I R I I R I 4 (57.1) 3 (42.9)
Chloramphenicol S S S S S S S 7 (100)
Doxycycline S S S S S S S 7 (100)
Erythromycin S S S S S S S 7 (100)
Minocycline S S S S S S S 7 (100)
Penicillin G R R R R R R R 7 (100)
Rimfampicin S S S S S S S 7 (100)
Tetracycline S S S S S S S 7 (100)
Susceptible 7 (77.8%) 7 (77.8%) 7 (77.8%) 7 (77.8%) 7 (77.8%) 7 (77.8%) 7 (77.8%)
Intermediate 0 1 (11.2%) 0 1 (11.2%) 1 (11.2%) 0 1 (11.2%)
Resistant 2 (22.3%) 1 (11.2%) 2 (22.3%) 1 (11.2%) 1 (11.2%) 2 (22.3%) 1 (11.2%)
According to the CLSI guidelines using the breakpoints of Staphylococcus species resistance due to the lack of resistance criteria for Listeria susceptibility testing in the CLSI guidelines.