[Resistance to antibiotics of Salmonellae other than typhi and paratyphi isolated in Algeria from 1979 to 1985]

Monitoring of the antibiotic resistance patterns of non typhoid Salmonella is needed. In this paper, we report the results of our study of strains isolated in Algeria from 1979 through 1985. Studied strains were isolated in our laboratory from stool or blood samples or sent to us for confirmation of the diagnosis. We used agar diffusion with IPA 20 medium (Mueller-Hinton medium with tryptophan). Of 3,072 strains tested, 2,467 (80.3%) were resistant to one or more antibiotics. For the most frequent serotypes, the resistance was about 99% whereas, for less frequent ones, it was about 51%. The most part of strains were found to be resistant to more than two antibiotics. The strains showed high rate of resistance to (in decreasing order): ampicillin, sulfamides, chloramphenicol, streptomycin and tetracycline.