Upper Respiratory Tract Colonization by Gram-Negative Rods in Patients with Chronic Lymphocytic Leukemia: Analysis of Risk Factors

Table 2

Gram-negative rods isolated from upper respiratory tract from examined patients and their resistance patterns.

Species	No. of isolates	Resistance pattern (no. of isolates)
Escherichia coli	4	S (4)
Klebsiella pneumoniae subsp. pneumoniae	2	S (1); Am (1)
Klebsiella oxytoca	2	Am Pip Tic Tob (1); Am Pip Tic (1)
Serratia marcescens	1	Am Amc Pip Tzp Tic Tim Cxm Ctx Caz Te
Proteus vulgaris	1	Am Amc Pip Tzp Tic Tim Cxm Ctx Caz Fep Atm Ipm Te Sxt
Proteus mirabilis	1	Cxm
Citrobacter koseri	1	Am Amc Pip Tzp Tic Tim Cxm Ctx Caz
Hafnia alvei	1	Am Amc Pip Tzp Tic Tim Cxm Ctx Caz
Pseudomonas aeruginosa	1	Amc Te Sxt

Am, ampicillin; Amc, amoxycillin/clavulanate acid; Pip, piperacillin; Tzp, piperacillin/tazobactam; Tic, ticarcillin; Tim, ticarcillin/clavulanate acid; Cxm, cefuroxime; Ctx, cefotaxime; Caz, ceftazidime; Fep, cefepime; Atm, aztreonam; Ipm, imipenem; Te, tetracycline; Sxt, trimetoprim/sulfamethoxazole.