TABLE 1.

Distribution, sources, and antimicrobial resistance phenotypes of Salmonella serotypes isolated from chicken farms in South Korea

SerotypeSource(s)Resistance typeaNo. of isolates
S. AgonaFecesNo resistance observed2
S. AlbertFecesSu-Tc1
S. AugustenborgFecesNo resistance observed1
S. BareillyFecesNo resistance observed2
S. DessauFecesNa2
S. EnteritidisFeces, eggshell, dead egg yolk, cloaca, liver, water, environmental dustAmx-Su-Am-Cm-Na-Sm-Tc1
Amx-Su-Am-Na-Sm-Tc1
Amx-Su-Am-Na-Sm-Tc-Eno1
Cf-Na-Ap-Sm1
Na3
Su13
Su-Cm-Flo-Na-Tm3
Su-Na-Sm-Tc1
Su-Na-Tm8
No resistance observed2
S. FerruchFecesSu-Na-Sm-Tc-Cip1
S. GiveFecesSu-Cm-Tc-Tm3
Su-Sm-Tc2
S. HaardtFecesAmx-Su-Am-Na-Neo-Sm-Tc-Tm2
S. HeidelbergFecesSu-Na-Ap-Sm-Tm1
S. IndianaFecesAmx-Su-Am-Cf-Na-Ap-Neo-Sm-Tc-Tm-Cef
Amx-Su-Am-Te2
Amx-Am-Su-Tm-Cef1
Amx-Te1
Amx-Neo-Te1
No resistance observed3
S. InfantisFecesSm1
No resistance observed1
S. IstanbulFecesAmx-Cf-Sm-Tc1
Amx-Te1
Neo-Tc1
Tc1
S. TruroEgg yolkSu-Na-Gm1
S. TyphimuriumFecesAmx-Su1
No resistance observed3
S. VirchowFeces, water, environmental dust, boats, feedSu-Na-Sm-Tm4
Su-Na-Sm-Tm8
Su-Na-Tm1
Su-Sm4
S. WarragulFecesSu-Na-Tm1
Salmonella spp. (B group; 4,5;1)FecesNo resistance observed1
Salmonella spp. (C1 group; 7;z10)FecesAmx-Su-Am-Cf-Sm-Tc-Tm1
  • a Ampicillin, Am; amoxicillin, Amx; apramycin, Ap; ceftiofur, Cef; cephalothin, Cf; chloramphenicol, Cm; ciprofloxacin, Cip; enrofloxacin, Eno; florfenicol, Flo; gentamicin, Gm; nalidixic acid, Na; neomycin, Neo; streptomycin, Sm; sulfamethoxazole, Su; tetracycline, Tc; and trimethoprim, Tm.