Document Detail


Burden and transmission of zoonotic foodborne disease in a rural community in Mexico.
MedLine Citation:
PMID:  22423121     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BackgroundThe foodborne transmission and human health impact of Salmonella and Campylobacter infections have rarely been evaluated at the population level in highly endemic settings.MethodsA prospective 15-month cohort study of 127 infants and 119 elders was combined with animal and food surveillance to determine the incidence and severity of Salmonella and Campylobacter gastroenteritis in a comparatively prosperous rural community in Mexico.ResultsSalmonella and Campylobacter were isolated in up to 75% and 57%, respectively, of raw retail meat, and up to 4.5% of ready-to-eat foods. Rates of acute gastroenteritis of any etiology in infants and elders were, respectively, 2.1 and 0.7 episodes per person per year. The annual incidence density rate of Salmonella gastroenteritis was 17.8 per 100 infants and 7.9 per 100 elders; the rate of Campylobacter gastroenteritis was 11.7 per 100 infants and 0 per 100 elders. PFGE analysis yielded multiple clusters of human, meat and/or animal Salmonella and Campylobacter isolates with indistinguishable patterns. On average, gastroenteritis episodes with these pathogens lasted 3 days in infants and 2 days in elders. Medical attention was sought in 44% of infant diarrheal episodes and 26% in elders; none required hospitalization. Infants with MDR-Salmonella gastroenteritis had a higher frequency of bloody stools and medical visits (50% vs. 11%, OR= 8.5, p= 0.04) than infants with more susceptible strains.ConclusionsIn this relatively advantaged Mexican rural community, the human health impact of a food chain heavily contaminated with Salmonella and Campylobacter was of low magnitude.
Authors:
Mussaret B Zaidi; Freddy D Campos; Teresa Estrada-García; Flor Gutierrez; Magda León; Rodolfo Chim; Juan J Calva
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-3-15
Journal Detail:
Title:  Clinical infectious diseases : an official publication of the Infectious Diseases Society of America     Volume:  -     ISSN:  1537-6591     ISO Abbreviation:  -     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-3-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9203213     Medline TA:  Clin Infect Dis     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Microbiology Research Laboratory, Hospital General O'Horan, Mérida, Mexico.
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