Abstract :
The term hospital acquired infection or nosocomial infection are applied to infections developing in hospitalized
patients. NI are inherent and inseparable dangers of modern therapy, especially for the critically ill patients.
Maximum number of NI’s is known to be caused by Staphylococcus aureus, Pseudomonas aeruginosa, and various
gram negative bacilli- E. coli, Klebsiella and Proteus. Similarly the major site of infections are respiratory tract,
urinary tract and surgical site. This study was planned to isolate and characterize the bacteria causing NI and to
study the sensitivity behaviour of above bacteria. The antimicrobial sensitivity was done by Kirbey and Bauer
method. Twenty urine sample and ten swab samples from the surgical site of the local hospital in Haridwar were
collected out of which 2 urine and 1 pus sample were positive while remaining are negative. The present study
shows that the incidence of occurrence of NI in hospital was found to be 10%.
Keyword :
Nosocomial Infection, Staphylococcus aureus, Pseudomonas aeruginosa, E.coli, Klebsiella, antimicrobial sensitivity.