Objective: The aim of this study was to describe epidemiological, clinical and bacteriological aspects of Salmonella bacteremia in the Fann university hospital infectious diseases clinic.
Patients and method: This study was carried out on data recorded between January 1, 1996 and December 31, 2003. The strains were identified according to biochemical (API 20E, BioMérieux) and antigenic features. Their susceptibility to antibiotic drugs was tested by antibiogram. Research of strains secreting of an extended-spectrum betalactamase was performed.
Results: Fifty five cases of Salmonella bacteremia were recorded as follows: S.Typhi bacteremia (32 cases), S. Paratyphi C bacteremia (4 cases), S. typhimurium bacteremia (9 cases), S. enteritidis bacteremia (32 cases) and S. spp bacteremia (8 cases). All the strains were susceptible to ciprofloxacin, ceftriaxone, aztreonam, amoxicillin+clavulanic acid and 90 % of them were susceptible to cotrimoxazole. Bacteremia occurred in 50 HIV infected patients (49%). Salmonella other than Typhi bacteremia were more often present in patients with HIV (81% vs 36% in patients without HIV infection) (P = 0.00001). The lethality rate was 42%. This rate was higher in patients with HIV (56 vs 23% in patients without infection) (P = 0.002).
Conclusion: The lethality rate of Salmonella bacteremia is high, especially in AIDS patients. Therefore, priority must be given to prevention and chemoprophylaxis with cotrimoxazole should be a good way to reduce the incidence of bacteremia in AIDS patients.