Publication:

A study on common pathogens associated with nosocomial infections and their antibiotic sensitivity

Background S. aureus, coagulase negative staphylococci, enterococci, a variety of gram-negative bacilli, and Candida spp. are responsible for the vast majority of infections. Coagulase negative staphylococcal infections have increased dramatically in past 2 decades, almost entirely because of increase in the frequency of blood stream infections caused by these organisms.

Methods Appropriate microbiological samples were taken from the site of infection from all the patients included in the study. Whenever necessary, required serological examinations are sent.

Results Of 30 episodes of nosocomial infections from which any pathogen was isolated, three episodes were polymicrobial. Gram-negative organisms were more frequently (76.67%) isolated than gram-positive organisms (20%), and fungi (3.33%).

Conclusions Almost all gram-negative bacteria showed 100% sensitivity to Imipenem. Pseudomonas isolates showed sensitivity of 100% to Imipenem, 83.33% to Piperacillin+Tazobactum. Klebsiella showed sensitivity of 83.33% to Ciprofloxacin and Amikacin.