AI Article Synopsis
- On October 6, 2019, a foodborne outbreak occurred during a mass gathering event, leading health officials to investigate symptoms in attendees.
- The investigation identified 169 cases with a 7.2% attack rate, finding vomiting, abdominal pain, and diarrhea as common symptoms linked to consuming nasi lemak.
- The contamination likely came from food or food handlers, prompting recommendations for safer catering practices at similar events to prevent future outbreaks.*
Article Abstract
Objective: On 6 October 2019, Petaling District Health Office received notification of a possible foodborne outbreak involving a mass gathering event. This report presents the processes of diagnosis verification, case identification, determination of associated risk factors and commencement of control measures in managing the outbreak.
Methods: Cases were defined as those who attended the mass gathering event on 6 October 2019, consumed the pre-packaged food and subsequently developed vomiting, abdominal pain, diarrhoea or other symptoms (e.g. fever, nausea and dizziness). Epidemiological, environmental and laboratory investigations were performed. Data were analysed using SPSS software (version 24.0).
Results: A total of 169 cases were identified. The attack rate was 7.2%, and cases ranged in age from 7 to 50 years, with a median of 20 years. A total of 156 (92.3%) cases had vomiting, 137 (81.1%) had abdominal pain and 83 (49.1%) had diarrhoea. Consuming nasi lemak at the mass gathering was found to be significantly associated with developing illness (odds ratio: 9.90, 95% confidence interval: 6.46-15.16). The samples from suspected food, food handlers and the environment were positive for , or coliforms.
Discussion: The outbreak at this mass gathering was probably caused by food contaminated with and . To prevent future outbreaks, we recommend mass gathering events use certified catering services that have adequate food safety training.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8977284 | PMC |
| http://dx.doi.org/10.5365/wpsar.2022.13.1.860 | DOI Listing |
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