Abstract
INTRODUCTION Food poisoning is a type of gastroenteritis, usually caused by contaminated food. Hulu Langat district health officehad received an online notification of food poisoning on 28 Jun 2018. An investigation team wasmobilized immediately to determine the causal agent, identify risk factors and implement control measures. METHODS Case control study design was used. Cases were defined as any individual from the eight preschools affected presented with either symptoms of vomiting, diarrhoea, abdominal pain or fever since 27 Jun 2018. Active case detection was conducted. Laboratory analysis of stool, food, surface sampling of utensils, hazard analysis and critical control points (HACCP), and an interview with patients was carried out. Data was analysed using SPSS. RESULTS In total, 72 cases were identified among students and teachers from 544 who was exposed. The attack rate was 13.2%. A total of 29(40%) students were admitted and 25(35%) treated as outpatient in eight different hospitals in Klang valley. Main symptoms were diarrhoea (98.6%), fever (86.1%), vomiting (83.3%), abdominal pain (62.5%) and premises rating was 82.7%. The highest risk was from egg (OR 9.6; 95%Cl: 2.34, 41.37, p<0.05). Fried rice sample showed Bacillus cereus while stool sample positive for Salmonella sp. CONCLUSIONS The outbreak was most likely due to fried tomato egg which was served for lunch earlier. There might be cross contamination because of improper egg cleaning methods and prolonged food holding time. Suspected bacteria is Salmonella based on incubation period with a predominant of lower gastrointestinal symptoms. Action was taken including closure of premises and health education was given to food handlers.
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@proceedings{APCPH-2019-176,
title = {Food Poisoning Outbreak Among Hulu Langat Preschool Students},
author = {Sarah Nabila Zulkifli},
year = {2019},
date = {2019-07-22},
urldate = {2019-07-22},
journal = {6th Asia-Pacific Conference on Public Health 2019 Proceedings},
issue = {6},
abstract = {INTRODUCTION Food poisoning is a type of gastroenteritis, usually caused by contaminated food. Hulu Langat district health officehad received an online notification of food poisoning on 28 Jun 2018. An investigation team wasmobilized immediately to determine the causal agent, identify risk factors and implement control measures. METHODS Case control study design was used. Cases were defined as any individual from the eight preschools affected presented with either symptoms of vomiting, diarrhoea, abdominal pain or fever since 27 Jun 2018. Active case detection was conducted. Laboratory analysis of stool, food, surface sampling of utensils, hazard analysis and critical control points (HACCP), and an interview with patients was carried out. Data was analysed using SPSS. RESULTS In total, 72 cases were identified among students and teachers from 544 who was exposed. The attack rate was 13.2%. A total of 29(40%) students were admitted and 25(35%) treated as outpatient in eight different hospitals in Klang valley. Main symptoms were diarrhoea (98.6%), fever (86.1%), vomiting (83.3%), abdominal pain (62.5%) and premises rating was 82.7%. The highest risk was from egg (OR 9.6; 95%Cl: 2.34, 41.37, p\<0.05). Fried rice sample showed Bacillus cereus while stool sample positive for Salmonella sp. CONCLUSIONS The outbreak was most likely due to fried tomato egg which was served for lunch earlier. There might be cross contamination because of improper egg cleaning methods and prolonged food holding time. Suspected bacteria is Salmonella based on incubation period with a predominant of lower gastrointestinal symptoms. Action was taken including closure of premises and health education was given to food handlers.},
note = {Type: POSTER PRESENTATION; Organisation:},
keywords = {food poisoning, Hulu Langat, outbreak, Preschool, Students},
pubstate = {published},
tppubtype = {proceedings}
}