The rate of salmonella spp. from healthy people in Ho Chi Minh city in 2018

Abstract

Survey results of 226 stool samples from healthy people collected from four districts in Ho Minh city in 2018 (districts no. 1, 5, 8 and 9) showed that the number of people carrying Salmonella spp. was 12/226 (5.3%). Twelve fecal samples were positive for Salmonella spp. with 15 Salmonella spp. strains isolated. Three of them are S. Indiana (20.0%); S. Typhimurium, S. Rissen and S. Give. Each has two strains (13.3%): 1 strain has serotypes O: 1 and one strains has 9: 1.5 (6.7%). These Salmonella strains belong to the non-typhoid group (the group that causes diarrhea). The Salmonella spp. strains isolated have highest antibiotic resistance to ampicillin, tetracycline, chloramphenicol (80.0%); followed by sulfamethoxazole/trimethoprim (66.7%); nalidixic acid (40.0%); gentamicin, ciprofloxacin, kanamycin (26.7%). Strains resistant to the third generation cephalosporins were found (cefotaxime and ceftazidime). Three of these are resistant to both types of antibiotics (20.0%). No strains resistance to cefoxitin and cosfomycin were detected.