T1-07 Salmonella Concentration, Serotypes, and Antimicrobial Resistance on Raw Poultry in Emerging Market Countries (China, Colombia, Guatemala, Russia, and Vietnam)

Monday, July 29, 2013: 10:30 AM
213BC (Charlotte Convention Center)
Walid Alali, University of Georgia, Griffin, GA
Baowei Yang, Northwest A&F University, Yangling, China
Pilar Donado, Colombian Corporation of Agricultural Research, Bogota, Colombia
Yen Ta, National Institute for Food Control, HaNoi, Vietnam
Roman Gaidashov, Consumer Rights Protection Society, Moscow, Russia
Claudia Jarquin, Universidad del Valle de Guatemala, Guatemala City, Guatemala
Isabel Walls, U.S. Department of Agriculture-NIFA, Washington, DC
Michael Doyle, University of Georgia, Griffin, GA
Introduction: Data collection for Salmonella on raw poultry will contribute to the global knowledge on protecting the food supply and facilitating U.S. and international trade, as well as providing quantitative risk assessment data on Salmonella at the local-country-level for food safety surveillance and pathogen phenotypic characterization 

Purpose: To determine the concentrations, serotypes, and antimicrobial resistance profiles of Salmonella on raw poultry in China, Colombia, Guatemala, Russia and Vietnam to increase the knowledge on how to protect the global food supply and enhance food safety data collection and risk assessment at the local level

Methods: Whole chicken carcasses (n = 300/country) were collected from retail establishments (large, small, and wet markets), over a wide geographical range in these countries. Salmonella concentration was assessed using MPN method (according to USDA-FSIS). Salmonella serotypes were determined using the Kauffmann-White scheme, and disk diffusion or broth microdilution methods were used for antimicrobial susceptibility testing (up to 15 antimicrobials). 

Results: The prevalence and concentration (mean log MPN/carcass) of Salmonella in China, Colombia, Guatemala, Russia and Vietnam were (43%, 0.74), (37%, 0.78), (45%, 1.1), (51%, 1.2), and (49%, 0.98), respectively. Most frequently detected serotypes were S. Enteritidis (18.7%) in China, S. Paratyphi B (44.7%) in Colombia, and S. Infantis (72%) in Russia.  Multi-drug resistant (≥ 2 drugs) Salmonella were detected in 89% (n = 671) of isolates in China, 79% (n = 378) in Colombia, 74% (n = 73) in Guatemala, and 94% (n = 153) in Russia. Data collection is still ongoing in Guatemala, Russia, and Vietnam.

Significance: Although Salmonella concentrations do not appear to be high compared to USDA-FSIS 2008 data (mean log MPN = 1.8), the Salmonella prevalence in these countries was high. These data will be helpful to identify common and unique Salmonella serotypes on raw chicken meat in relation to public health. In addition, multi-drug resistant isolates may pose a significant public health risk.