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Table 2 Antimicrobial susceptibility among 1764 Salmonella enterica isolates from humans with infections in Guangdong province, China, during 2007 and 2012, and MDR in each of the top 11 serovars

From: Serovar distribution, antimicrobial resistance profiles, and PFGE typing of Salmonella enterica strains isolated from 2007–2012 in Guangdong, China

   No. of isolates resistant to indicated agent at the indicated breakpoint (% resistance)a  
S. entericaserovar No. of isolates AMP Ampicillin CAZ Ceftazidime CTX Cefotaxime FEP Cefepime NAL Nalidixic acid CIP Ciprofloxacin SMX Sulfamethoxazole TMP Trimethoprim TCY Tetracycline GEN Gentamicin STR Streptomycin CHL Chloramphenicol MDR
Enteritidis 257 143(55.64) 11(4.28) 14(5.45) 18(7.01) 212(82.49) 11(4.28) 141(54.86) 23(89.49) 76(29.57) 23(8.95) 110(42.81) 10(3.89) 116(45.14)
Typhimurium 523 453(86.62) 43(82.21) 68(13.01) 69(13.19) 437(83.56) 60(11.47) 455(86.99) 337(64.44) 457(87.38) 340(65.01) 391(74.76) 381(72.85) 454(86.80)
1,4,5,12:i:- 244 220(90.16) 18(7.37) 30(12.29) 29(11.88) 182(74.59) 28(11.47) 220(90.16) 128(52.46) 228(93.44) 141(57.78) 164(67.21) 164(67.21) 218(89.34)
Stanley 167 14(8.38) 10(5.99) 11(6.58) 9(5.39) 19(11.37) 8(4.79) 35(20.96) 14(8.38) 20(11.98) 13(7.78) 25(14.97) 13(7.78) 18(10.78)
Derby 46 15(26.08) 2(4.35) 3(6.52) 3(6.52) 17(36.96) 4(8.69) 35(76.08) 14(30.44) 22(47.83) 14(30.44) 19(41.30) 16(34.78) 15(32.61)
Rissen 36 26(72.22) 3(8.33) 5(13.89) 6(16.67) 5(13.89) 1(2.78) 23(63.89) 30(83.33) 31(86.11) 7(19.44) 16(44.44) 5(13.89) 15(41.67)
Weltevreden 35 3(8.57) 2(5.71) 2(5.71) 2(5.71) 4(11.43) 1(2.86) 8(22.86) 4(11.43) 6(17.14) 3(8.57) 6(17.14) 2(5.71) 3(8.57)
Infantis 28 23(82.14) 0 3(10.71) 2(7.14) 23(82.14) 0 23(82.14) 19(67.86) 19(67.86) 4(14.28) 4(14.28) 21(75) 21(75)
Agona 24 4(16.67) 0 1(4.17) 3(12.5) 4(16.67) 3(12.5) 7(29.17) 3(12.5) 8(33.33) 4(16.67) 5(20.83) 5(20.83) 6(25)
Albany 22 21(95.45) 3(13.63) 4(18.18) 4(18.18) 20(90.9) 1(4.54) 22(100) 20(90.9) 21(95.45) 4(18.18) 7(31.81) 21(95.45) 20(90.9)
Newport 19 3(15.79) 2(10.53) 1(5.26) 0 4(21.05) 1(5.26) 5(26.31) 3(15.79) 6(31.57) 2(10.53) 5(26.31) 3(15.79) 4(21.05)
Typhi 4 1(25) 0 1(25) 0 1(25) 0 1(25) 1(25) 1(25) 1(25) 1(25) 1(25) 1(25)
Paratyphi (A + B + C) 24 5(20.83) 2(8.33) 1(4.16) 1(4.16) 5(20.83) 1(4.16) 4(16.66) 0 2(8.33) 1(4.16) 4(16.66) 0 3(12.5)
Other 114 NTS serovars 335 106(31.64) 28(8.35) 32(9.55) 23(6.86) 119(35.52) 23(6.86) 141(42.09) 106(31.06) 161(31.64) 54(16.11) 121(36.11) 72(21.49) 103(30.74)
Total (% resistance)b   1037(58.78) 124(7.03) 176(9.98) 169(9.58) 1052(59.64) 142(8.05) 1120(63.49) 702(39.79) 1058(59.97) 611(34.64) 878(49.77) 714(40.48) 997(56.52)
  1. aThe percentage means the proportion of MDR isolates within each serotype.
  2. bThe percentage means the proportion of MDR isolates in total 1764 isolates.