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. 2002 Aug;8(8):827–832. doi: 10.3201/eid0808.020014

Table 2. Results of time-kill study of two isolates of pandrug-resistant Acinetobacter baumannii (PDRAB).

MIC (µg/mL)a
Isolate I
Isolate II
Antibiotic (clone 5) (clone 6)
Alone
Imipenem 32 32
Amikacin 128 64
Ciprofloxacin 128 2
Ampicillin-sulbactam 128 32
Combination
Imipenem + amikacin 16/64 2/4
Imipenem + ciprofloxacin 32/128 4/0.25
Imipenem + ampicillin-sulbactam 16/64 8/8
Ciprofloxacin + ampicillin-sulbactam 128/128 1/16

aValues are the lowest concentrations (µg/mL) of each agent in combination that yielded synergy.