The Assessment of Proteus mirabilis Susceptibility to Ceftazidime and Ciprofloxacin and the Impact of These Antibiotics at Subinhibitory Concentrations on Proteus mirabilis Biofilms

Table 2

Contribution of Proteus mirabilis strains producing beta-lactamase with extended spectrum of activity depending on the degree of susceptibility to examined antibiotics.

Antimicrobial susceptibility	Ciprofloxacin		Ceftazidime
	ESBL(−); (𝑛 (%))	ESBL(+); (𝑛 (%))	ESBL(−); (𝑛 (%))	ESBL(+); (𝑛 (%))
Susceptible	20 (51.3%)	0	31 (79.5%)	1 (9.1%)
Intermediate	13 (33.3%)	2 (18.2%)	2 (5.1%)	0
Resistant	6 (15.4%)	9 (81.8%)	6 (15.4%)	10 (90.9%)