Novel estimation of African swine fever transmission parameters within smallholder villages in Lao P.D.R

African Swine Fever (ASF) disease transmission parameters are crucial for making response and control decisions when faced with an outbreak, yet they are poorly quantified for smallholder and village contexts within Southeast Asia. Whilst disease-specific factors − such as latent and infectious peri...

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Glavni autori: Matsumoto, N, Ward, MP, Halasa, T, Schemann, K, Khounsy, S, Douangngeun, B, Thepagna, W, Phommachanh, P, Siengsanan-Lamont, J, Young, JR, Toribio, JLML, Bush, RD, Blacksell, SD
Format: Journal article
Jezik:English
Izdano: Springer 2024
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author Matsumoto, N
Ward, MP
Halasa, T
Schemann, K
Khounsy, S
Douangngeun, B
Thepagna, W
Phommachanh, P
Siengsanan-Lamont, J
Young, JR
Toribio, JLML
Bush, RD
Blacksell, SD
author_facet Matsumoto, N
Ward, MP
Halasa, T
Schemann, K
Khounsy, S
Douangngeun, B
Thepagna, W
Phommachanh, P
Siengsanan-Lamont, J
Young, JR
Toribio, JLML
Bush, RD
Blacksell, SD
author_sort Matsumoto, N
collection OXFORD
description African Swine Fever (ASF) disease transmission parameters are crucial for making response and control decisions when faced with an outbreak, yet they are poorly quantified for smallholder and village contexts within Southeast Asia. Whilst disease-specific factors − such as latent and infectious periods − should remain reasonably consistent, host, environmental and management factors are likely to affect the rate of disease spread. These differences are investigated using Approximate Bayesian Computation with Sequential Monte-Carlo methods to provide disease parameter estimates in four naïve pig populations in villages of Lao People’s Democratic Republic. The villages represent smallholder pig farmers of the Northern province of Oudomxay and the Southern province of Savannakhet, and the model utilised field mortality data to validate the transmission parameter estimates over the course of multiple model generations. The basic reproductive number between-pigs was estimated to range from 3.08 to 7.80, whilst the latent and infectious periods were consistent with those published in the literature for similar genotypes in the region (4.72 to 6.19 days and 2.63 to 5.50 days, respectively). These findings demonstrate that smallholder village pigs interact similarly to commercial pigs, however the spread of disease may occur slightly slower than in commercial study groups. Furthermore, the findings demonstrated that despite diversity across the study groups, the disease behaved in a consistent manner. This data can be used in disease control programs or for future modelling of ASF in smallholder contexts.
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spelling oxford-uuid:9233a956-1fc5-460c-9c04-ff822508de892024-07-04T20:08:00ZNovel estimation of African swine fever transmission parameters within smallholder villages in Lao P.D.RJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9233a956-1fc5-460c-9c04-ff822508de89EnglishJisc Publications RouterSpringer2024Matsumoto, NWard, MPHalasa, TSchemann, KKhounsy, SDouangngeun, BThepagna, WPhommachanh, PSiengsanan-Lamont, JYoung, JRToribio, JLMLBush, RDBlacksell, SDAfrican Swine Fever (ASF) disease transmission parameters are crucial for making response and control decisions when faced with an outbreak, yet they are poorly quantified for smallholder and village contexts within Southeast Asia. Whilst disease-specific factors − such as latent and infectious periods − should remain reasonably consistent, host, environmental and management factors are likely to affect the rate of disease spread. These differences are investigated using Approximate Bayesian Computation with Sequential Monte-Carlo methods to provide disease parameter estimates in four naïve pig populations in villages of Lao People’s Democratic Republic. The villages represent smallholder pig farmers of the Northern province of Oudomxay and the Southern province of Savannakhet, and the model utilised field mortality data to validate the transmission parameter estimates over the course of multiple model generations. The basic reproductive number between-pigs was estimated to range from 3.08 to 7.80, whilst the latent and infectious periods were consistent with those published in the literature for similar genotypes in the region (4.72 to 6.19 days and 2.63 to 5.50 days, respectively). These findings demonstrate that smallholder village pigs interact similarly to commercial pigs, however the spread of disease may occur slightly slower than in commercial study groups. Furthermore, the findings demonstrated that despite diversity across the study groups, the disease behaved in a consistent manner. This data can be used in disease control programs or for future modelling of ASF in smallholder contexts.
spellingShingle Matsumoto, N
Ward, MP
Halasa, T
Schemann, K
Khounsy, S
Douangngeun, B
Thepagna, W
Phommachanh, P
Siengsanan-Lamont, J
Young, JR
Toribio, JLML
Bush, RD
Blacksell, SD
Novel estimation of African swine fever transmission parameters within smallholder villages in Lao P.D.R
title Novel estimation of African swine fever transmission parameters within smallholder villages in Lao P.D.R
title_full Novel estimation of African swine fever transmission parameters within smallholder villages in Lao P.D.R
title_fullStr Novel estimation of African swine fever transmission parameters within smallholder villages in Lao P.D.R
title_full_unstemmed Novel estimation of African swine fever transmission parameters within smallholder villages in Lao P.D.R
title_short Novel estimation of African swine fever transmission parameters within smallholder villages in Lao P.D.R
title_sort novel estimation of african swine fever transmission parameters within smallholder villages in lao p d r
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