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Table 2 Antimicrobial sensitivity, biofilm formation and efflux pump patterns of K. pneumoniae strains

From: Antibiotic resistance, virulence-associated genes analysis and molecular typing of Klebsiella pneumoniae strains recovered from clinical samples

Isolates code Antibiotic resistant pattern Anti-biotype (AB) MDR Biofilm former Quantitative biofilm formation Phenotypic efflux pump
K10, K17, K23, K73, K92, K98 CTX, CAZ, CRO, FOX, NA, CP, FM, TE, S, GM AB1 + + 2.63 ± 0.14 +
K15, K20 CTX, CAZ, CRO, FOX, NA, CP, FM, TMP AB2 + 0.025 ± 0.03 +
K1, K6, K13, K25 CTX, CAZ, CRO, FOX, TMP, GM, S AB 3 + + 2.13 ± 0.19 +
K4, K12, K21, K74, K77, K94 CAZ, FOX, FM, TE, TMP, S AB 4 + + 3.52 ± 0.21 +
K18, K35, K49 CTX, CAZ, CRO, FOX, FM, TMP AB 5 + + 0.76 ± 0.06 +
K3, K16, K22 CTX, CAZ, CRO, NA, CP AB 6 + + 0.38 ± 0.08 +
K8, K45, K75 CTX, CAZ, CRO, FOX, NA, CP, FM, TE AB 7 + + 2.69 ± 0.17 +
K5, K41, K76 CTX, CAZ, CRO, FOX, NA, CP, AMC, CF, S, FM, TMP, IMP, GM, MEN AB 8 + + 3.4 ± 0.12 +
K19, K31, K72 CTX, CAZ, CRO, NA, CP, FM, TMP, GM, S AB 9 + + 1.8 ± 0.07
K7 AMC, S, CF, TMP AB 10 + + 0.17 ± 0.16 +
K9, K28, K87 FM, CF, AMC, K, GM, TMP, CP, AN, FOX, CTX, CRO, CAZ AB 11 + + 0.81 ± 0.007 +
K24, K26, K40 S, CF, AMC, FM, IPM, TMP, MEN, NA, CP AB 12 + 0.16 ± 0.003 +
K14, K39 CL, TE, PB, AN, TMP, GM, K, S, FM, AMC, CF AB 13 + + 0.15 ± 0.006 +
K41, K59, K61, K93 AMC, CF, FM, PB, CL, TE AB 14 + + 0.94 ± 0.007
K36, K43 CP, TE, NA, FM, MEN, TMP, CF, AMC AB 15 + + 0.16 ± 0.006 +
K53, K81, K96 CF, AMC, MEN, TMP, IPM, CP, NA AB 16 + + 0.20 ± 0.13 +
K27, K30, K62, K88 FM, AMC, CF, IPM, AN, MEN, GM, TMP, CP, TE, NA, CL AB 17 + + 0.19 ± 0.001 +
K2, K11, K60, K78, K100 CF, AMC, TMP, CP, TE, NA AB 18 + + 0.13 ± 0.006 +
K50, K80, K85, K86 AMC, FM, CF, CP, TE, NA, MEN, IPM, TMP, GM, AN AB 19 + + 2.13 ± 0.003 +
K48, K52, K58, K65 AMC, S, CF, FM, IPM, MEN, CP, NA AB 20 + + 3.82 ± 0.009 +
K33, K47, K71, K56, K83, K69 CF, K, FM, AMC, GM, MEN, IPM, AN, TMP, NA, TE, CP AB 21 + + 0.19 ± 0.007 +
K 34, K 42, K 99 AMC, CF, FM, IMP, MEN, TMP, CP, NA, TE AB 22 + + 1.45 ± 0.008
K44, K50, K 54, K7, K66, K 79, K 97, K 63, K 64, K 70, K 82 CAZ, CRO, FOX, K, FM, AMC, CF, AN, TMP, GM, IMP, MEN, CP, TE, NA AB 23 + 0.02 ± 0.002 +
K 29, K 32, K 51, K 55, K 57, K 68, K 84 CP, TE, NA, TMP, GM, IMP, MEN, AMC, FM, CF, CAZ, CTX, CRO, FOX AB 24 + 0.029 ± 0.001 +
K 30, K 89, K 90, K 91, K 37, K 38, K 46, K 95 CF, AMC AB 25 + 0.56 ± 0.001 +
  1. CF Chloramphenicol, AMC Amoxicillin–clavulanic acid, FOX Cefoxitin, CRO Cefteriaxon, CTX Cefotaxime, CAZ Ceftazidime, FM Nitrofurantoin, MEN Meropenem, IMP Imipenem, GM Gentamycin, TMP Trimethoprim–sulfamethoxazole, NA Nalidixic acid, TE Tetracycline, CP Ciprofloxacin, S Streptomycin, K Kanamycin, CL Clindamycin, PB Polymixin B, S Streptomycin