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Table 4 Number of resistant strains for single molecules and single bacterial species

From: Antibiotic resistance assessment in bacteria isolated in migratory Passeriformes transiting through the Metaponto territory (Basilicata, Italy)

Class Antibiotics Bacterial speciesa Total number of resistant strains
Aminoglycosides Amikacin Citrobacter farneri (1)
Citrobacter freundii (3)
Enterobacter asburiae (1)
Enterobacter cancerogenus (2)
Enterobacter cloacae (6)
Hafnia alvei (1)
Klebsiella pneumoniae (1)
Leclercia adecarboxylata (2)
Providencia rettgeri (6)
Pseudomonas putida (1)
Serratia marcescens (1)
25 (20.5%)
Gentamicin Citrobacter freundii (3)
Citrobacter spp. (2)
Enterobacter asburiae (1)
Enterobacter cancerogenus (2)
Enterobacter cloacae (6)
Klebsiella oxytoca (1)
Klebsiella pneumoniae (1)
Leclercia adecarboxylata (2)
Providencia rettgeri (1)
Pseudomonas putida (1)
20 (16.4%)
Tobramicina Citrobacter freundii (2)
Citrobacter spp. (1)
Enterobacter cancerogenus (3)
Enterobacter cloacae (7)
Klebsiella oxytoca (1)
Klebsiella pnemoniae (1)
Leclercia adecarboxilata (3)
Providencia rettgeri (3)
Serratia marcescens (1)
22 (18%)
Cephalosporins Cefotaxime Citrobacter freundii (1)
Enterobacter asburiae (1)
Enterobacter cancerogenus (3)
Enterobacter cloacae (6)
Klebsiella pneumoniae (1)
Providencia rettgeri (3)
Pseudomonas putida (1)
16 (13.1%)
Cefotaxime–clavulanic acid Citrobacter freundii (2)
Enterobacter asburiae (1)
Enterobacter cancerogenus (2)
Enterobacter cloacae (6)
Klebsiella pneumoniae (1)
Providencia rettgeri (3)
Pseudomonas putida (1)
16 (13.1%)
Ceftazidime Citrobacter farneri (1)
Citrobacter freundii (2)
Citrobacter spp. (1)
Enterobacter asburiae (1)
Enterobacter cancerogenus (3)
Enterobacter cloacae (8)
Klebsiella pneumoniae (1)
Leclercia adecarboxylata (2)
Providencia rettgeri (4)
Pseudomonas putida (1)
24 (19.7%)
Ceftazidime–clavulanic acid Citrobacter farneri (1)
Citrobacter freundii (2)
Citrobacter spp. (1)
Enterobacter asburiae (1)
Enterobacter cancerogenus (3)
Enterobacter cloacae (8)
Klebsiella pneumoniae (1)
Providencia rettgeri (7)
Pseudomonas putida (1)
25 (20.5%)
Carbapenems Imipenem Citrobacter farneri (1)
Citrobacter freundii (2)
Citrobacter spp. (1)
Enterobacter asburiae (2)
Enterobacter cancerogenus (4)
Enterobacter cloacae (9)
Klebsiella pneumoniae (1)
Leclercia adecarboxylata (2)
Providencia rettgeri (7)
Pseudomonas putida (1)
Serratia marcescens (1)
31 (25.4%)
Meropenem Enterobacter cancerogenus (2)
Enterobacter cloacae (1)
Leclercia adecarboxylata (2)
Providencia rettgeri (2)
Pseudomonas putida (1)
8 (6.6%)
Fluoroquinolones Ciprofloxacin Citrobacter freundii (2)
Citrobacter spp. (2)
Enterobacter cancerogenus (1)
Enterobacter cloacae (6)
Klebsiella pneumoniae (1)
12 (9.8%)
Enrofloxacin Citrobacter freundii (2)
Citrobacter spp. (2)
Enterobacter cancerogenus (1)
Enterobacter cloacae (1)
Klebsiella oxytoca (1)
Klebsiella pneumoniae (1)
Leclercia adecarboxylata (1)
Providencia rettgeri (2)
Pseudomonas putida (1)
Serratia marcescens (2)
14 (11.5%)
Monobactams Aztreonam Citrobacter farneri (1)
Citrobacter freundii (1)
Citrobacter spp. (1)
Enterobacter asburiae (1)
Enterobacter cancerogenus (4)
Enterobacter cloacae (7)
Klebsiella oxytoca (1)
Providencia rettgeri (5)
Pseudomonas putida (1)
Pseudomonas stutzeri (1)
Serratia marcescens (1)
Non-identified (1)
25 (20.5%)
Penicillins Amoxicillin Aeromonas punctata (1)
Aeromonas spp. (1)
Citrobacter farneri (2)
Citrobacter freundii (4)
Citrobacter spp. (3)
Enterobacter asburiae (2)
Enterobacter cancerogenus (8)
Enterobacter cloacae (18)
Enterobacter cowanii (1)
Enterobacter spp. (4)
Hafnia alvei (1)
Klebsiella oxytoca (2)
Klebsiella pneumoniae (2)
Leclercia adecarboxylata (6)
Proteus mirabilis (1)
Providencia rettgeri (12)
Pseudomonas putida (1)
Serratia marcescens (5)
Non-identified (5)
79 (64.8%)
Amoxicillin–clavulanic acid Aeromonas punctata (1)
Aeromonas spp. (1)
Citrobacter farneri (2)
Citrobacter freundii (4)
Citrobacter spp. (3)
Enterobacter asburiae (2)
Enterobacter cancerogenus (8)
Enterobacter cloacae (17)
Enterobacter spp. (4)
Hafnia alvei (1)
Klebsiella pneumoniae (1)
Leclercia adecarboxylata (3)
Providencia rettgeri (12)
Pseudomonas putida (1)
Serratia marcescens (3)
Non-identified (3)
66 (54.1%)
Ampicillin Aeromonas punctata (1)
Aeromonas spp. (1)
Citrobacter farneri (1)
Citrobacter freundii (4)
Citrobacter spp. (2)
Enterobacter asburiae (1)
Enterobacter cancerogenus (8)
Enterobacter cloacae (18)
Enterobacter cowanii (1)
Enterobacter spp. (4)
Hafnia alvei (1)
Klebsiella oxytoca (2)
Klebsiella pneumoniae (2)
Leclercia adecarboxylata (5)
Proteus mirabilis (1)
Providencia rettgeri (15)
Pseudomonas putida (1)
Pseudomonas stutzeri (1)
Serratia marcescens (4)
Non-identified (4)
77 (63.1%)
Rifamycins Rifampicin Aeromonas punctata (1)
Citrobacter farneri (2)
Citrobacter freundii (4)
Citrobacter spp. (5)
Enterobacter asburiae (2)
Enterobacter cancerogenus (7)
Enterobacter cloacae (16)
Enterobacter cowanii (1)
Enterobacter spp. (4)
Hafnia alvei (3)
Klebsiella oxytoca (1)
Klebsiella pneumoniae (2)
Leclercia adecarboxylata (10)
Leclercia spp. (1)
Providencia rettgeri (9)
Pseudomonas putida (1)
Pseudomonas stutzeri (1)
Serratia marcescens (4)
Non-identified (2)
76 (61.5%)
Sulfonamides Trimethoprim/sulfamethoxazole Citrobacter freundii (1)
Enterobacter cloacae (2)
Leclercia adecarboxylata (1)
Providencia rettgeri (7)
Pseudomonas stutzeri (1)
Non-identified (3)
15 (12.3%)
Tetracyclines Tetraciclina Citrobacter freundii (2)
Citrobacter spp. (1)
Enterobacter asburiae (1)
Enterobacter cancerogenus (3)
Enterobacter cloacae (8)
Klebsiella oxytoca (1)
Leclercia adecarboxylata (3)
Proteus mirabilis (1)
Providencia rettgeri (21)
Pseudomonas putida (1)
Serratia marcescens (4)
Non-identified (2)
48 (39.3%)
  1. aIn the brackets are the numbers of resistant strains