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Salmonellosis associated with 'Combi-oven' cooked egg
S Ahmed1, A E Jephcott, R E Stanwell-Smith
1Bristol Public Health Laboratory.
Journal of Public Health Medicine
|March 1, 1992
Summary
A Salmonella enteritidis outbreak in Bristol was linked to egg mayonnaise served at a restaurant. The investigation identified a combi-oven egg-cooking technique as the likely cause, highlighting food safety concerns.
Area of Science:
- Foodborne illness epidemiology
- Microbial food safety
Background:
- Four cases of Salmonella enteritidis PT24 infection were reported in Bristol in July 1989.
- All infected individuals had dined at the same city restaurant.
Purpose of the Study:
- To investigate the cause of a Salmonella enteritidis outbreak linked to a restaurant.
- To identify the source and transmission route of the gastrointestinal illness.
Main Methods:
- Epidemiological investigation involving ill restaurant staff and customers.
- Questionnaire administration to customers to identify risk factors.
- Analysis of food consumption patterns, particularly egg mayonnaise.
Main Results:
- A significant association was found between illness and consumption of egg mayonnaise.
- A combi-oven egg-cooking technique was identified as the probable cause of the outbreak.
- Gastrointestinal illness affected restaurant staff and 56 customers.
Conclusions:
- The combi-oven egg-cooking technique is implicated in the Salmonella enteritidis outbreak.
- Widespread commercial use of this cooking method necessitates attention to food safety practices.
- Proper handling and cooking of eggs are crucial to prevent foodborne illness.