Bacteriological water quality and biofilm formation in the treatment system of the hemodialysis unit in Tlemcen, Algeria.

Objective: To evaluate and compare the microbiological quality of osmosis water at the distribution loop, at the dialysis generator inlet and to study the prevalence of biofilm in the tubing.

Methods: Microbiological analysis of 20 water loop samples, 10 water samples were taken at the machine entry and 10 pipe segments from tubing connecting the machines to the loop was done.

Results: The bacterial enumeration results of the loop water vary from 90 to 150 CFU/mL, while the average number of bacteria at the entry of the machines was 182 CFU/mL.

Biocide tolerance and antibiotic resistance of Enterobacter spp. isolated from an Algerian hospital environment.

Objectives: In this study, 77 Enterobacter spp. isolates from a collection of 175 Gram-negative bacilli isolated from Tlemcen University Hospital Center (North-West of Algeria) were tested for antibiotic resistance, biocide tolerance and genetic determinants of antimicrobial resistance.

Methods: The isolates were identified by 16S rDNA gene sequencing.