Diarrhea illness in livestock keeping households in Cambodia: An analysis using a One Health framework

Background: Most of human diarrheal pathogens are zoonotic, and transmission of the pathogens can occur by contaminated food, water, environment and direct contact with animals especially for livestock keepers. Yet little is known of the relative importance of different risk factors especially in un...

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Main Authors: Asakura, Shingo, Khieu, B., Seng, S., Pok, S., Ty, C., Phiny, C., Srey, T., Blacksell, S.D., Gilbert, Jeffrey, Grace, Delia, Alonso, Silvia
Format: Journal Article
Language:Inglés
Published: Frontiers Media 2023
Subjects:
Online Access:https://hdl.handle.net/10568/129823
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author Asakura, Shingo
Khieu, B.
Seng, S.
Pok, S.
Ty, C.
Phiny, C.
Srey, T.
Blacksell, S.D.
Gilbert, Jeffrey
Grace, Delia
Alonso, Silvia
author_browse Alonso, Silvia
Asakura, Shingo
Blacksell, S.D.
Gilbert, Jeffrey
Grace, Delia
Khieu, B.
Phiny, C.
Pok, S.
Seng, S.
Srey, T.
Ty, C.
author_facet Asakura, Shingo
Khieu, B.
Seng, S.
Pok, S.
Ty, C.
Phiny, C.
Srey, T.
Blacksell, S.D.
Gilbert, Jeffrey
Grace, Delia
Alonso, Silvia
author_sort Asakura, Shingo
collection Repository of Agricultural Research Outputs (CGSpace)
description Background: Most of human diarrheal pathogens are zoonotic, and transmission of the pathogens can occur by contaminated food, water, environment and direct contact with animals especially for livestock keepers. Yet little is known of the relative importance of different risk factors especially in under-studied countries. The objectives of this study were to identify risk factors for diarrhea in livestock keepers in Cambodia and detect diarrhea-causing pathogenic bacteria in both humans and livestock within a One Health approach. Of special interest were the links between diarrhea and food consumption and livestock-keeping. Materials and methods: We used an existing dataset from a questionnaire survey conducted in 400 livestock farms in Prey Veng and Kampot Prefectures between February and March 2013 as well as laboratory results on bacterial isolation from fecal and swab samples from livestock and poultry, and human stool samples. Laboratory results were available for up to three animals of each species kept by a household, and for up to three human samples from households reporting at least one case of human diarrhea in the previous 2 weeks. Presence of Escherichia coli, Shigella spp. and Salmonella spp. was investigated in both animal and human samples, in addition to Aeromonas spp., Vibrio spp. and Plesiomonas spp. in animal samples and Campylobacter spp. in human samples. Univariable and multivariable risk factor analyses were performed by generalized linear mixed model. Results: Household-level diarrhea incidence rate was 9.0% (36/400). The most statistically significant factor associated with diarrhea in multivariable analysis was water treatment for drinking and cooking (OR = 0.33, 95%CI: 0.16–0.69, p = 0.003), followed by number of days consuming egg within 2 weeks (OR = 1.16, 95%CI: 1.04–1.29, p = 0.008), number of children under 5 years old (OR = 1.99, 95%CI: 1.14–3.49, p = 0.016) and keeping poultry (OR = 0.36, 95%CI: 0.14–0.92, p = 0.033). Animal samples for bacterial culture test were collected at 279 cattle, 165 pig and 327 poultry farms, and bacteria were detected from 6 farms with the isolation of Escherichia coli O157 (non H7) from 1 cattle and 1 pig sample, Aeromonas caviae from 1 pig sample and Salmonella spp. from 3 chicken samples. In human samples, 17 out of 67 individual samples were positive for the culture test, detecting Escherichia coli O157 (non H7) from 7 samples and Shigella spp. from 10 samples. None of the households where target bacteria were detected from animal samples had human samples collected due to lack of diarrhea episodes in the household. Conclusions: It has often been hypothesized that keeping livestock may increase the incidence of diarrhea through multiple pathways. Contrary to this, we found livestock-keeping was not associated with increased risk, but food-related behavior and children under 5 years of age were strongly associated with increased risk. We discuss mediating and confounding factors and make recommendations for reducing the burden of diarrheal disease in Cambodia and more widely in low- and middle-income countries.
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spelling CGSpace1298232025-12-08T10:29:22Z Diarrhea illness in livestock keeping households in Cambodia: An analysis using a One Health framework Asakura, Shingo Khieu, B. Seng, S. Pok, S. Ty, C. Phiny, C. Srey, T. Blacksell, S.D. Gilbert, Jeffrey Grace, Delia Alonso, Silvia health one health approach animal production livestock diarrhoea Background: Most of human diarrheal pathogens are zoonotic, and transmission of the pathogens can occur by contaminated food, water, environment and direct contact with animals especially for livestock keepers. Yet little is known of the relative importance of different risk factors especially in under-studied countries. The objectives of this study were to identify risk factors for diarrhea in livestock keepers in Cambodia and detect diarrhea-causing pathogenic bacteria in both humans and livestock within a One Health approach. Of special interest were the links between diarrhea and food consumption and livestock-keeping. Materials and methods: We used an existing dataset from a questionnaire survey conducted in 400 livestock farms in Prey Veng and Kampot Prefectures between February and March 2013 as well as laboratory results on bacterial isolation from fecal and swab samples from livestock and poultry, and human stool samples. Laboratory results were available for up to three animals of each species kept by a household, and for up to three human samples from households reporting at least one case of human diarrhea in the previous 2 weeks. Presence of Escherichia coli, Shigella spp. and Salmonella spp. was investigated in both animal and human samples, in addition to Aeromonas spp., Vibrio spp. and Plesiomonas spp. in animal samples and Campylobacter spp. in human samples. Univariable and multivariable risk factor analyses were performed by generalized linear mixed model. Results: Household-level diarrhea incidence rate was 9.0% (36/400). The most statistically significant factor associated with diarrhea in multivariable analysis was water treatment for drinking and cooking (OR = 0.33, 95%CI: 0.16–0.69, p = 0.003), followed by number of days consuming egg within 2 weeks (OR = 1.16, 95%CI: 1.04–1.29, p = 0.008), number of children under 5 years old (OR = 1.99, 95%CI: 1.14–3.49, p = 0.016) and keeping poultry (OR = 0.36, 95%CI: 0.14–0.92, p = 0.033). Animal samples for bacterial culture test were collected at 279 cattle, 165 pig and 327 poultry farms, and bacteria were detected from 6 farms with the isolation of Escherichia coli O157 (non H7) from 1 cattle and 1 pig sample, Aeromonas caviae from 1 pig sample and Salmonella spp. from 3 chicken samples. In human samples, 17 out of 67 individual samples were positive for the culture test, detecting Escherichia coli O157 (non H7) from 7 samples and Shigella spp. from 10 samples. None of the households where target bacteria were detected from animal samples had human samples collected due to lack of diarrhea episodes in the household. Conclusions: It has often been hypothesized that keeping livestock may increase the incidence of diarrhea through multiple pathways. Contrary to this, we found livestock-keeping was not associated with increased risk, but food-related behavior and children under 5 years of age were strongly associated with increased risk. We discuss mediating and confounding factors and make recommendations for reducing the burden of diarrheal disease in Cambodia and more widely in low- and middle-income countries. 2023-03-30 2023-03-31T11:29:33Z 2023-03-31T11:29:33Z Journal Article https://hdl.handle.net/10568/129823 en Open Access Frontiers Media Asakura, S., Khieu, B., Seng, S., Pok, S., Ty, C., Phiny, C., Srey, T., Blacksell, S.D., Gilbert, J., Grace, D. and Alonso, S. 2023. Diarrhea illness in livestock keeping households in Cambodia: An analysis using a One Health framework. Frontiers in Sustainable Food Systems 7: 1127445.
spellingShingle health
one health approach
animal production
livestock
diarrhoea
Asakura, Shingo
Khieu, B.
Seng, S.
Pok, S.
Ty, C.
Phiny, C.
Srey, T.
Blacksell, S.D.
Gilbert, Jeffrey
Grace, Delia
Alonso, Silvia
Diarrhea illness in livestock keeping households in Cambodia: An analysis using a One Health framework
title Diarrhea illness in livestock keeping households in Cambodia: An analysis using a One Health framework
title_full Diarrhea illness in livestock keeping households in Cambodia: An analysis using a One Health framework
title_fullStr Diarrhea illness in livestock keeping households in Cambodia: An analysis using a One Health framework
title_full_unstemmed Diarrhea illness in livestock keeping households in Cambodia: An analysis using a One Health framework
title_short Diarrhea illness in livestock keeping households in Cambodia: An analysis using a One Health framework
title_sort diarrhea illness in livestock keeping households in cambodia an analysis using a one health framework
topic health
one health approach
animal production
livestock
diarrhoea
url https://hdl.handle.net/10568/129823
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