Bacteriological analysis of wound infections from Sukkur, Sindh

Abstract

Wound is a physical injury where the skin or another external surface including mucus membrane is damaged. The development of chronicity and delay healing of a wound are mainly caused by bacterial infections. The aim of thepresent study was to find out that which bacteria,causing wound infections, are more commoninSukkur region. This cross sectional study was carried out for the duration of six months. Samples were collected using standard aseptic methods, and then cultured on selective and differential media. The bacterial isolates were identified using microscopic and conventional biochemical methods. Out of forty six culture positive specimens, 20% (n=14) yielded growth of mixed cultures containing two or three types of bacteria, hence a total of sixty six bacterial isolates were recovered altogether.Results of thepresent study demonstrated that the most predominant wound pathogen wasStaphylococcus aureuswith 34.84% (n=23) followed by Pseudomonas aeruginosawith 15.15% (n= 10) and β hemolytic streptococciwith 13.63% (n=10).Other isolated bacteria were Escherichia coli(9.09%), Proteus vulgaris(7.57%), Enterococcus spp. (6.06%), Klebsiella pneumoniae(4.54%), Streptococcus spp(6.06%) and Acinetobacter spp(3.03 %).In conclusion, the commonest wound pathogen at area of the present study wasS. aureus. Second and third most common wound pathogenswereP. aeruginosaand β hemolytic Streptococci.