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Table 1 General features of all bacterial strains isolated from urban birds from the different investigated sites of Marseille city

From: Investigation of urban birds as source of β-lactamase-producing Gram-negative bacteria in Marseille city, France

Strain name Isolates Sources Sites Antibiotic resistance phenotype MICCT (µg/ml) blaCTX-M genea blaTEM genea MLST
Bacterial strains isolated from the MacConkey agar
 B11 Escherichia coli Yellow-legged gull Site 1 AX, AMC, CRO, FEP, STX, CIP 0.25 CTX-M-15 ST10
 B32 Escherichia coli Chicken Site 2 AX, AMC, CRO, FEP, STX, CN 0.25 TEM-1 ST1652
 B60 Escherichia coli Yellow-legged gull Site 3 AX, AMC, CRO, FEP, STX 0.25 CTX-M-15 ST38
 A61 Escherichia coli Pigeon Site 2 AX, KF, CRO, FEP 0.25 CTX-M-15 ST34
 B62 Escherichia coli Yellow-legged gull Site 3 AX, AMC, CRO, FEP 0.25 CTX-M-1 TEM-1 ST857
 B62 Cronobacter sakazakii Yellow-legged gull Site 3 AX, AMC, CRO, FF 0.25 TEM-1
 B34 Pseudomonas aeruginosa Chicken Site 2 AX, KF, CRO, F, STX 0.25 TEM-1
Bacterial strains isolated from the LBJMR agar
 B42 Hafnia alvei Chicken Site 2 AX, AMC, KF, CT 8
 B02 Hafnia alvei Yellow-legged gull Site 1 AX, AMC, KF, CT 4
 B04 Hafnia alvei Yellow-legged gull Site 1 KF, CT 4
 B11 Hafnia alvei Yellow-legged gull Site 1 AX, AMC, KF, CT 4
 B21 Hafnia alvei Yellow-legged gull Site 4 KF, CT 4
 B47 Hafnia alvei Chicken Site 2 AX, AMC, KF, CT 4
 B59 Hafnia alvei Yellow-legged gull Site 3 AX, AMC, KF, FF, F, CT 4
 A63 Hafnia alvei Pigeon Site 2 AX, AMC, KF, FF, F, CT 4
 A61 Panteoa ananatis Pigeon Site 2 AX, AMC, KF, FF, F, CT > 256
 B05 Proteus hauseri Yellow-legged gull Site 1 F, CT > 256
 B22 Serratia marcescens Yellow-legged gull Site 4 F, CT > 256
 B36 Providencia alcalifaciens Chicken Site 2 F, CT > 256
  1. Site 1: Palais Longchamp; Site 2: Parc 26e Centenaire; Site 3: Plage Estaque; Site 4 : Parc Borely
  2. AX amoxicillin, AMC amoxicillin–clavulanic acid, KF cefalotin, CRO ceftriaxone, FEP cefepime, ERT ertapenem, IMP imipenem, FF fosfomycin, F nitrofurantoin, SXT trimethoprim–sulfamethoxazole, CIP ciprofloxacin, CT colistin, CN gentamycin, ST sequence type
  3. aObtained β-lactamase sequences were compared with reference protein sequences of bets hit sequences which were blaCTX-M-15 (JQ686199); blaCTX-M-1 (X92506); and blaTEM-1 (JQ735917) (cf. Additional file 2)