ABSTRACT
Sensitivity patterns of bacterial isolates from respiratory tract infections to benzylpenicillin, gentamicin and ceftazidime were studied. In a period covering 8 weeks from November to December 1990, tracheal aspirates from a total of 22 intubated patients aged 6-54 years were taken. The duration of stay of patients in the unit by the time of specimen collection ranged from 2-92 days. Respiratory tract infections by pathogenic organisms set in earliest on day 4. Elevated temperatures (equal to or greater than 38 degrees C) and/or purulence in sputum were used as diagnostic indicators of respiratory tract infections. A total of 12 pathogenic organisms were obtained: Proteus spp, Pseudomonas spp, Klebsiella spp, Acinetobacter spp, Escherichia coli and Staphylococcus aureus. None of the 12 pathogens isolated was sensitive to benzylpenicillin; 50% of organisms were sensitive to gentamicin and all were sensitive to ceftazidime.