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Volume 14, Number 3—March 2008

Integrated Food Chain Surveillance System for Salmonella spp. in Mexico1

Mussaret B. Zaidi*Comments to Author , Juan Jose Calva†, Maria Teresa Estrada-Garcia‡, Veronica Leon*, Gabriela Vazquez§, Gloria Figueroa§, Estela Lopez¶, Jesus Contreras#, Jason Abbott**, Shaohua Zhao**, Patrick McDermott**, and Linda Tollefson††
Author affiliations: *Hospital General O’Horan, Mérida, Mexico; †Instituto Nacional de Ciencias Medicas y Nutricion, Salvador Zubiran, Mexico City, Mexico; ‡Centro de Investigacion y Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico; §Secretaría de Salud del Estado de Michoacan, Morelia, Mexico; ¶Laboratorio Estatal de Salud Pública y Hospital Central, Servicios de Salud del Estado de San Luis Potosí, San Luis Potosi, Mexico; #Hospital Infantil del Estado de Sonora, Hermosillo, Mexico; **Food and Drug Administration, Laurel, Maryland, USA; ††Food and Drug Administration, Rockville, Maryland, USA;

Main Article

Table 1

Comparison of socioeconomic indicators and prevalence of retail meat contamination and human Salmonella infection, by state, Mexico, 2002–2005

Indicator Yucatan, % Sonora, % San Luis Potosi, % Michoacan, %
Population >15 y illiterate or with incomplete primary education 40.1 24.0 37.1 44.0
Households with no toilet or latrine 24.6 7.0 14.0 15.4
Households with no sewage system 40.8 20.2 37 24.4
Working population earning <$4 US/d 23.4 6.7 16.4 13.0
Average prevalence of Salmonella in retail meat 59.1 14.2 29.7 16.0
Average prevalence of Salmonella in diarrheal episodes 15.8 12.6 10.8 5.8
Average prevalence of Salmonella in asymptomatic children 11.3 4.4 2.2 1.9

Main Article

1Presented in part at the International Association for Food Protection 93rd Annual Meeting, August 13–16, 2006, Calgary, Alberta, Canada.

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