[The effect of adherence on virulence of uropathogenic strains of Escherichia coli].

Bacterial adherence is an extremely important process in the initiation of many infections. After the successful colonization other factors of bacterial virulence produce inflammation and damage of the tissue. A close contact between bacterial and host cells, which is mediated by adherence, makes bacterial antigens better presented.

Production of pyrogenic exotoxins in group A streptococci isolated from patients in Zagreb, Croatia.

The pyrogenic exotoxin profiles were determined of group A streptococci isolated from patients in Zagreb, Croatia in the period 1989-1990. A total of 12 strains were studied, five from patients with serious infections and seven from patients with uncomplicated infections. Serotypes M1 and M3 were found in seven (58%) patients.

[Bacteremia caused by beta-hemolytic group A streptococci].

The epidemiological, clinical and laboratory characteristic of group A beta-hemolytic streptococcal (GABHS) bacteremia in patients treated at the University Hospital of Infectious Diseases in Zagreb were analyzed. Of 51 cases of bacteremia due to GABHS seen over the past 15 years, 15 (29%) have been registered since 1987. The mean age of our patients was 25 years (range, 5 months to 87 years); and 29 (57%) were under 18.

Ciprofloxacin in the treatment of gram-negative bacillary meningitis.

Gram-negative bacillary meningitis (typically caused by E. coli, K. pneumoniae, P.