Haemolysin and Serum Resistance Profiles of Bacteria Isolates from Blood Culture

Abstract

Haemolysin production and serum resistance ability of bacteria isolates from blood culture were investigated using standard microbiological technique. Enterobactor species were the bacteria isolates with the highest prevalence of β–haemolysin production while klebsiella species were the least. No strain of Citrobacter freundii, Proteus vulgaris, Alcaligenes species and coagulase negative Staphylococcus produced haemolysis. No bacteria species was sensitive to the bactericidal action of normal human serum. There was no association between haemolysin production and resistance to ciprofloxacin, ceftriaxone and ceftazidime. Conclusively, bacteria agents of septicemia are very virulence and urgent treatment is advocated to stem the tile of associated sequelae.

Key words: Hemolysin production, serum resistance, bacterial isolates, blood culture