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Antimicrobial resistance of Salmonella spp. Isolates and heavy Metal traces from rodent meat purchased from roadside markets, Central Thailand

Saengthongpinit C., Sratongno K., Phimpraphai W., Tulayakul P., Morand S., De Garine-Wichatitsky M.. 2019. Foodborne Pathogens and Disease, 16 (10) : 9 p..

Although game meat consumption is widespread across the globe, involving a great diversity of species in very different ecological and sociocultural environments, the safety of wild meat products is rarely assessed routinely. We conducted a survey to evaluate the safety of two rodents products (Rattus tanezumi and Bandicota indica) purchased from roadside markets in central Thailand. Total aerobic bacteria and Escherichia coli counts measured were above Thai poultry product standards for 83.3% and 100% of the samples, respectively (n?=?108), although there was no difference between rat species (analysis of variance [ANOVA], p?>?0.05). Salmonella spp. were isolated from 32% of the swabs collected (67/208), including 19 different serovars. All strains were resistant or partially resistant to at least 2 of the 16 antibiotics tested, with levels of resistance varying greatly among antibiotics (e.g., 97% of strains sensitive to ciprofloxacin and 98.5% of strains resistant to cloxacillin). Detectable traces of Cd and Pb were found in 98% and 46% of the samples analyzed, respectively (n?=?61). Pb and Cd concentrations measured in the kidneys of R. tanezumi were significantly higher than in the liver and muscles and significantly higher than B. indica muscles and kidneys but not liver (ANOVA, p?

Mots-clés : résistance aux antibiotiques; gibier; métal lourd; toxicologie; alimentation humaine; rongeur; salmonella; thaïlande

Thématique : Contamination et toxicologie alimentaires; Nutrition humaine : considérations générales; Pollution

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