In May 1996, the Georgia Division of Public Health was notified about a cluster of persons with Salmonella Enteritidis (SE) infections in Waycross, Georgia.
A matched pair case-control study to determine risk factors for illness found a statistically significant association of SE infection with a history of having eaten at Restaurant A during the 5 days before onset of illness (relative risk=13 [95% confidence interval (CI)=3-62, P<0.01]). In a second case-control study, to determine specific food exposures, consumption of a deep-fried Mexican dish (chile relleno) (4 of 21 cases vs. 0 of 26 controls, odds ratio undefined, 95% CI>1.46, P=0.034) was found to be significantly associated with SE infection.
An environmental investigation found evidence of suboptimal food storage and cooking temperatures at Restaurant A ; cross contamination of foods may have contributed to the low attributable risk identified for chile rellenos.
Five of 37 Restaurant A food and environment specimens yielded SE strains.
All five positive specimens were from chiles rellenos.
Of the seven outbreak-associated strains (six patient isolates and one food isolate from Restaurant A) for which phage typing was conducted, all were phage type 34.
A FDA traceback investigation through Restaurant A's single-egg supplier identified the potential source as three interrelated farms in South Carolina.
Environmental culture from one of these farms yielded SE phage type 34. (...)
Mots-clés Pascal : Salmonella enteritidis, Enterobacteriaceae, Bactérie, Homme, Salmonellose, Bactériose, Infection, Epidémiologie, Etude cas, Etiologie, Prévalence, Facteur risque, Restaurant, Ovoproduit, Contamination biologique, Intoxication alimentaire, Géorgie, Etats Unis, Amérique du Nord, Amérique
Mots-clés Pascal anglais : Salmonella enteritidis, Enterobacteriaceae, Bacteria, Human, Salmonellosis, Bacteriosis, Infection, Epidemiology, Case study, Etiology, Prevalence, Risk factor, Restaurant, Egg product, Biological contamination, Food poisoning, Georgia, United States, North America, America
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0308165
Code Inist : 002A05B11. Création : 16/11/1999.