R-plasmid in several salmonella typhi strains from Hanoi, Hue and Hochiminh city
- Author:
Le Huy Chinh
- Publication Type:Journal Article
- Keywords:
R-plasmid, salmonella typhi
- MeSH:
Salmonella typhi;
R Factors;
epidemiology
- From:Journal of Medical Research
2003;23(3):33-38
- CountryViet Nam
- Language:Vietnamese
-
Abstract:
The study was performed on 90 Salmonella typhi strains isolated from patients in Hanoi, Hue and Ho Chi Minh city. The results showed that: the multi-antibiotic resistant Salmonella typhi strains have already spread over the country; 2 plasmid with size about 120 kilobase (Kb) and 102 Kb. Plasmid 120 Kb is conjugated, self-transmitted R-plasmid and carrying at least 5 antibiotic resistant genes to chloramphenicol, ampicillin, tetracycline and trimethoprim/sulfamethoxazole. The initial analysis by a restricted enzyme of EcoRi showed that these self-transmitted R-plasmid in S.typhi strains isolated in 3 areas Hanoi, Hue and Hochiminh city maybe the same origin.
