iMedPub Journals Our Site: http://www.imedpub.com/ © Copyright iMedPub 1 JOURNAL OF BIOMEDICAL SCIENCES 2013 Vol. 2 No. 2:2 doi: 10.3823/1017 Prevalence of bacterial infection among hospital traumatic patients in relation to abo blood group Abdulhamid M. Alkout 1 , Abdulaziz A. Zorgani 2 and Heyam Y. Abello 3 This article is available from: www.jbiomeds.com 1 Medical Laboratory Department, Faculty of Medical Technology, University of Tripoli. Tripoli-Libya. 2 Medical Microbiology and Immunology Department, Faculty of Medicine , University of Tripoli. Tripoli-Libya. 3 Microbiology Department, Academic Postgraduate. Tripoli- Libya. Correspondence:  zorgania@yahoo.com Dr. Abdulaziz A. Zorgani, BSc, DipBact, MSc, PhD Medical Microbiology and Immunology Department, Faculty of Medicine , University of Tripoli. Tripoli-Libya P.O. Box 12456 Tripoli-Libya. Abstract Background: there are many studies demonstrated a correlation between blood group antigens and susceptibility to infectious diseases such as bacteria, parasites and viruses. Objectives: to assess the prevalence of bacterial infection among patients in the trauma hospital, and to assess the susceptibility of ABO blood groups to the isolated bacteria. Methods and Findings: 166 samples included, wound swabs, sputum and midstream urine were received for routine culture diagnostic procedures from the in-patients at Abosleem Traumatic Hospital and ABO group was obtained from Blood bank documented system for each patient. A correlation between isolated organisms and ABO system was determined. 51% patients were infected during their stay in the hospital by one of the following isolates: Pseudomonas (22%); Klebsiella (9%); Staphylococci (15%); and Streptococci (4%). The majority of in- patients belong to blood group O (45%), preceded by group A (37%); B (14%) and AB (4%). The distribution of different blood group within four main bacte- rial isolates was determined as following: 43% of blood group A patients were susceptible to pseudomonas; (27%) Klebsiella; (36%) Staphylococci; and (29%) Streptococci . While, group B individuals were infected with these organisms: 16% with Pseudomonas, 13% with Klebsiella, 8% with Staphylococci , and 29% with Streptococci . Meanwhile, blood group O patients had following strains: 38% Pseudomonas, 53% Klebsiella, 52% Staphylococci , 42% Streptococci . Only, 3% of Pseudomonas, 7% of Klebsiella, and 4% of Staphylococci infected in-patients who expressed blood group AB. Conclusion: the most common bacterial infection among traumatic patient was Pseudomonas, Staphylococci and Klebsiella respectively and individuals of blood group A were found more susceptible to Pseudomonas infection while blood group O more susceptible to Klebsiella and Staphylococci among traumatic patient. Key words: ABO blood group, infection, traumatic patient, Libya. Introduction There are many sources of infection including environmen- tal sources, person to person, self infection, and medical or surgical procedures [1]. Hospital associated infection is an important cause of patient morbidity and death and it rep- resents a serious and growing health problem, it is estimated that about 2 million people acquire hospital infections each year and that about 90000 of these patients die as a result of their infections [2, 3]. Enterobaceriaceae, Staphylococci ,