Journal of Environmental and Public Health / 2020 / Article / Tab 2

Research Article

Antibiotic Resistance Profile of Bacteria Isolated from Wastewater Systems in Eastern Ethiopia

Table 2

Disk content and EUCAST breaking points of each antibiotic tested for specific indicator bacteria.

Antibiotic classAntibioticCodeContent (µg)E. coliEnterococci spp.P. aeruginosaAeromonas spp.
<R≥S<R≥S<R≥SRS

β-lactamsAmpicillinAMP10|21414810IRNR
Amoxicillin/ClavAMC3020/101919IRNR
CephalosporinCeftazidimeCAZ30101922IR17172124
CefepimeCFP302427IR21212427
AminoglycosidesGentamicinGEN1010|301417881515NR
AmikacinAMIK3015181518NR
FluoroquinoloneLevofloxacinLVL552319151522222427
CiprofloxacinCIP552426151526262427
CarbapenemMeropenemMRP10101622NR1824
SulfonamidesCo-TrimoxazoleSxT251.25/23.7511142323NR1619

IR: intrinsically resistant, NR: not recommended. We have used two types of ampicillin and gentamicin disk for AST of E. coli and Enterococci spp.

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