[Clinical, epidemiologic and bacteriological characteristics of urinary tract infections due to staphylococcus saprophyticus in the central part of Tunisia]

We assess the clinical, epidemiologic and bacteriological aspects of urinary tract infections due to S. saprophyticus through a sample collected in the central part of Tunisia. Retrospective study, related to 92 strains of S. saprophyticus, isolated among positive urinary specimens in 2006. Considered data were: sex, age, original departments, symptoms, type of urinary tract infection, diagnosis date and susceptibility of strains to antibiotics. Patients are young women in 98% [average age: 31.5 years] with cystitis in 99%. They are outpatients in 90%. S. saprophyticus represents 2.8% of all uropathogens; it is the first cocci with positive Gram [28.2%]. Any seasonal variation is noticed. S. saprophyticus has shown higher susceptibility to antibiotics than other staphylococci; cotrimoxazole, fluoroquinolons and nitrofurans represent the best treatment. S. saprophyticus is responsible of cystitis in young women. There is no seasonal variation in our area. This community staphylococci is very susceptible to antibiotics

[Streptococcus agalactiae in nonpregnant adult]

The pathogenic capacity of streptococcus agalactiae or Group B Streptococcus [GBS] has been increasing in nonpregnant adults. We carried out a study about the pathogenic capacity and susceptibility to antibiotics of GBS strains isolated between January 2003 and June 2004 in Farhat Hached hospital of Sousse [Tunisian general hospital]. Identification of strains was carried out according to usual bacteriological characters. Susceptibility of GBS to antibiotics was carried out according to CA-SFM recommendations. During the study period, sixty strains were isolated. They were essentially isolated from the urinary tract [52%] and the skin [36.2%]. Women accounted for 68 percent of the cases. Among the 30 hospitalized patients, 20 [66%] had serious underlying disease. Diabetes mellitus was predominant [80%]. All group B streptococci isolates were susceptible to amoxicillin, penicillin G. vancomycin and to pristinamycin. Sixty four percent of isolates were susceptible to erythromycin. Among the invasive infection, caused by GBS in nonpregnant adults, skin and urinary tract infections were the most common. All isolates were susceptible to amoxicillin, penicillin G, vancomycin and to pristinamycin