Klebsiella pneumoniae accounts for more than 70% of human infections. Especially K. pneumoniae is
considered as a significant cause of bloodstream-associated infections (BSIs), urinary tract infections
(UTIs), and respiratory tract infections in neonatal and intensive care units. A total of 316 K. pneumoniae,
168 isolates from male and 148 isolates from female patients, were isolated from the blood cultures of
intensive care patients in Van Training and Research Hospital of the University of Health Sciences. The
highest isolation was detected in the age group of “72<” in the male and female patients. The lowest
isolation rates were observed in the age group of “18-36” in the male patients and “36-54” in the female
patients. Extended-spectrum β-lactamase (ESBLs) and Carbapenemase (CP) productions of 316 K.
pneumoniae isolates were evaluated by antibiotic resistance results. Two hundred and fifty K.
pneumoniae strains isolated from the patients were observed to be ESBL positive. CP productions of 132
of the 316 K. pneumoniae isolates were revealed to be positive. It was concluded that K. pneumoniae
strains, which cause circulatory system infections in our region, had high ESBLs and CP resistance, and
it was important to analyze them accurately by sex, age, and antibiotic resistance.