Survey of Enteropathogenic Bacteria in Food Handlers at the Attractive tourist Place in the Lower Central part of Thailand

Abstract

A Survey of Enteropathogenic bacteria in food handlers at the Lower Central part of Thailand, including Kanchanaburi, Ratchaburi, Nakhonpathom, Samut Songkhram, Samut Sakhorn, Petchaburi and Prachuabkerikan Province, were study during January 1998 to November 1999. The rectal swab from 1,615 samples were cultured for Shigella, Salmonella and Vibrio. All samples were negative for Shigella and V. cholerae 01 and 0139. 86 samples (5.3%) were positive for Salmonella and 2 samples (0.1%) for V. parahemohrticus. The incidence of asymtomatic Salmonella in some provinces are statistically significant (p < 0.05, Chi-square test) however the incidence between sex, age and type of food shop are not statistically difference. (p > 0.05). The resistant rate of Samonella to Ampicillin, Co-trimoxazole, and Chloramphenicol were 15.7%, 16.2% and 18.1% respectively and no resistant strain to Norfloxacin and Cefotaxime. All Salmonella isolated from carrier were serotyped for serovar. The predominant serovar were S. Weltrevreden, S. Rissen, S. Anatum, S. Derby and S. Agona. They were all non-typhoidal salmonellsa.