Simulating Cross-Contamination of Cooked Pork with Salmonella enterica from Raw Pork through Home Kitchen Preparation in Vietnam
Pork is the most commonly consumed meat in Vietnam, and Salmonella enterica is a common contaminant. This study aimed to assess potential S. enterica cross-contamination between raw and cooked pork in Vietnamese households. Different scenarios for cross-contamination were constructed based on a hous...
Main Authors: | , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2018-10-01
|
Series: | International Journal of Environmental Research and Public Health |
Subjects: | |
Online Access: | http://www.mdpi.com/1660-4601/15/10/2324 |
id |
doaj-0b84fe84971744ffbba1ab0aaa8cefa2 |
---|---|
record_format |
Article |
spelling |
doaj-0b84fe84971744ffbba1ab0aaa8cefa22020-11-24T21:18:00ZengMDPI AGInternational Journal of Environmental Research and Public Health1660-46012018-10-011510232410.3390/ijerph15102324ijerph15102324Simulating Cross-Contamination of Cooked Pork with Salmonella enterica from Raw Pork through Home Kitchen Preparation in VietnamSinh Dang-Xuan0Hung Nguyen-Viet1Phuc Pham-Duc2Delia Grace3Fred Unger4Nam Nguyen-Hai5Thanh Nguyen-Tien6Kohei Makita7Center for Public Health and Ecosystem Research, Hanoi University of Public Health, 1A Duc Thang Road, Duc Thang Ward, North Tu Liem District, Hanoi 100000, VietnamCenter for Public Health and Ecosystem Research, Hanoi University of Public Health, 1A Duc Thang Road, Duc Thang Ward, North Tu Liem District, Hanoi 100000, VietnamCenter for Public Health and Ecosystem Research, Hanoi University of Public Health, 1A Duc Thang Road, Duc Thang Ward, North Tu Liem District, Hanoi 100000, VietnamInternational Livestock Research Institute, 30709 Naivasha Street, Nairobi 00100, KenyaInternational Livestock Research Institute, 298 Kim Ma Street, Hanoi 100000, VietnamCenter for Public Health and Ecosystem Research, Hanoi University of Public Health, 1A Duc Thang Road, Duc Thang Ward, North Tu Liem District, Hanoi 100000, VietnamNational Institute of Veterinary Research, 86 Truong Chinh, Hanoi 100000, VietnamVeterinary Epidemiology Unit, School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai Midorimachi, Ebetsu, Hokkaido 069-8501, JapanPork is the most commonly consumed meat in Vietnam, and Salmonella enterica is a common contaminant. This study aimed to assess potential S. enterica cross-contamination between raw and cooked pork in Vietnamese households. Different scenarios for cross-contamination were constructed based on a household survey of pork handling practices (416 households). Overall, 71% of people used the same knife and cutting board for both raw and cooked pork; however, all washed their hands and utensils between handling raw and cooked pork. The different scenarios were experimentally tested. First, S. enterica was inoculated on raw pork and surfaces (hands, knives and cutting boards); next, water used for washing and pork were sampled to identify the presence and concentration of S. enterica during different scenarios of food preparation. Bootstrapping techniques were applied to simulate transfer rates of S. enterica cross-contamination. No cross-contamination to cooked pork was observed in the scenario of using the same hands with new cutting boards and knives. The probability of re-contamination in the scenarios involving re-using the cutting board after washing was significantly higher compared to the scenarios which used a new cutting board. Stochastic simulation found a high risk of cross-contamination from raw to cooked pork when the same hands, knives and cutting boards were used for handling raw and cooked pork (78%); when the same cutting board but a different knife was used, cross-contamination was still high (67%). Cross-contamination between was not seen when different cutting boards and knives were used for cutting raw and cooked pork. This study provided an insight into cross-contamination of S. enterica, given common food handling practices in Vietnamese households and can be used for risk assessment of pork consumption.http://www.mdpi.com/1660-4601/15/10/2324cross-contaminationporkSalmonella entericasimulationVietnam |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Sinh Dang-Xuan Hung Nguyen-Viet Phuc Pham-Duc Delia Grace Fred Unger Nam Nguyen-Hai Thanh Nguyen-Tien Kohei Makita |
spellingShingle |
Sinh Dang-Xuan Hung Nguyen-Viet Phuc Pham-Duc Delia Grace Fred Unger Nam Nguyen-Hai Thanh Nguyen-Tien Kohei Makita Simulating Cross-Contamination of Cooked Pork with Salmonella enterica from Raw Pork through Home Kitchen Preparation in Vietnam International Journal of Environmental Research and Public Health cross-contamination pork Salmonella enterica simulation Vietnam |
author_facet |
Sinh Dang-Xuan Hung Nguyen-Viet Phuc Pham-Duc Delia Grace Fred Unger Nam Nguyen-Hai Thanh Nguyen-Tien Kohei Makita |
author_sort |
Sinh Dang-Xuan |
title |
Simulating Cross-Contamination of Cooked Pork with Salmonella enterica from Raw Pork through Home Kitchen Preparation in Vietnam |
title_short |
Simulating Cross-Contamination of Cooked Pork with Salmonella enterica from Raw Pork through Home Kitchen Preparation in Vietnam |
title_full |
Simulating Cross-Contamination of Cooked Pork with Salmonella enterica from Raw Pork through Home Kitchen Preparation in Vietnam |
title_fullStr |
Simulating Cross-Contamination of Cooked Pork with Salmonella enterica from Raw Pork through Home Kitchen Preparation in Vietnam |
title_full_unstemmed |
Simulating Cross-Contamination of Cooked Pork with Salmonella enterica from Raw Pork through Home Kitchen Preparation in Vietnam |
title_sort |
simulating cross-contamination of cooked pork with salmonella enterica from raw pork through home kitchen preparation in vietnam |
publisher |
MDPI AG |
series |
International Journal of Environmental Research and Public Health |
issn |
1660-4601 |
publishDate |
2018-10-01 |
description |
Pork is the most commonly consumed meat in Vietnam, and Salmonella enterica is a common contaminant. This study aimed to assess potential S. enterica cross-contamination between raw and cooked pork in Vietnamese households. Different scenarios for cross-contamination were constructed based on a household survey of pork handling practices (416 households). Overall, 71% of people used the same knife and cutting board for both raw and cooked pork; however, all washed their hands and utensils between handling raw and cooked pork. The different scenarios were experimentally tested. First, S. enterica was inoculated on raw pork and surfaces (hands, knives and cutting boards); next, water used for washing and pork were sampled to identify the presence and concentration of S. enterica during different scenarios of food preparation. Bootstrapping techniques were applied to simulate transfer rates of S. enterica cross-contamination. No cross-contamination to cooked pork was observed in the scenario of using the same hands with new cutting boards and knives. The probability of re-contamination in the scenarios involving re-using the cutting board after washing was significantly higher compared to the scenarios which used a new cutting board. Stochastic simulation found a high risk of cross-contamination from raw to cooked pork when the same hands, knives and cutting boards were used for handling raw and cooked pork (78%); when the same cutting board but a different knife was used, cross-contamination was still high (67%). Cross-contamination between was not seen when different cutting boards and knives were used for cutting raw and cooked pork. This study provided an insight into cross-contamination of S. enterica, given common food handling practices in Vietnamese households and can be used for risk assessment of pork consumption. |
topic |
cross-contamination pork Salmonella enterica simulation Vietnam |
url |
http://www.mdpi.com/1660-4601/15/10/2324 |
work_keys_str_mv |
AT sinhdangxuan simulatingcrosscontaminationofcookedporkwithsalmonellaentericafromrawporkthroughhomekitchenpreparationinvietnam AT hungnguyenviet simulatingcrosscontaminationofcookedporkwithsalmonellaentericafromrawporkthroughhomekitchenpreparationinvietnam AT phucphamduc simulatingcrosscontaminationofcookedporkwithsalmonellaentericafromrawporkthroughhomekitchenpreparationinvietnam AT deliagrace simulatingcrosscontaminationofcookedporkwithsalmonellaentericafromrawporkthroughhomekitchenpreparationinvietnam AT fredunger simulatingcrosscontaminationofcookedporkwithsalmonellaentericafromrawporkthroughhomekitchenpreparationinvietnam AT namnguyenhai simulatingcrosscontaminationofcookedporkwithsalmonellaentericafromrawporkthroughhomekitchenpreparationinvietnam AT thanhnguyentien simulatingcrosscontaminationofcookedporkwithsalmonellaentericafromrawporkthroughhomekitchenpreparationinvietnam AT koheimakita simulatingcrosscontaminationofcookedporkwithsalmonellaentericafromrawporkthroughhomekitchenpreparationinvietnam |
_version_ |
1726010811982282752 |