Occurrence of chlorine-resistant Pseudomonas aeruginosa in hospital water systems: threat of waterborne infections for patients

Table 1 Antibiotic panel used for the isolated P. Aeruginosa from water and biofilm samples

Antibiotic group	Antibiotic	Disk content (µg) [28]	Zone diameter breakpoints (mm) [28]
Antibiotic group	Antibiotic	Disk content (µg) [28]	Susceptible	Intermediate	Resistant
β-lactam (cepham)	Ceftazidime ^A	30	≥ 18	15–17	≤ 14
β-lactam (cepham)	Cefepime ^B	30	≥ 18	15–17	≤ 14
β-lactam (monobactam)	Aztreonam ^B	30	≥ 22	16–21	≤ 15
β-lactam (carbapenem)	Imipenem ^B	10	≥ 19	16–18	≤ 15
Aminoglycoside	Gentamicin ^A	10	≥ 15	13–14	≤ 12
Aminoglycoside	Amikacin ^B	30	≥ 17	15–16	≤ 14
Fluoroquinolone	Ciprofloxacin ^B	5	≥ 25	19–24	≤ 18

^a Antibiotics listed as Group A should be routinely tested, ^B antibiotics listed as Group B should be tested occasionally [28]

ISSN: 2047-2994