[Etiologic bacterial factors of infections in patients treated at the clinical anesthesiology ward and with intensive therapy].

Bacteriological investigations were carried on 264 patients treated in 1988-1990. 1736 samples of biological materials were taken and it amounts to 6-7 samples from each patient. Most frequently isolated microorganisms were: Pseudomonas aeruginosa (15%), Proteus mirabilis (13%), Klebsiella pneumoniae (10%) and Staphylococcus aureus (10%). Serological typing of Pseudomonas aeruginosa was performed according to Habs and domination of immunotype P16 (30%) was detected. Majority of isolated Klebsiella pneumoniae were not typable with basic and broadened phage set. One strain was susceptible to phages KI12 and KI27. This phage type was not isolated in Poland before. Staphylococci were most frequently susceptible to group II phages (29%), additional phages (19%) and 15% were not typable with the phage set used. Isolated bacteria were in majority resistant to numerous antibiotics.