Spatial proliferation of African swine fever virus in South Korea.

The African swine fever virus (ASFV) was first detected in South Korea on a pig farm in September 2019. Despite active preventive measures to control the spread of ASFV, outbreaks on pig farms and in wild boar have been increasing. In this study, we investigated the spatial contamination area using...

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Main Authors: Shraddha Tiwari, Thakur Dhakal, Ishwari Tiwari, Gab-Sue Jang, Yeonsu Oh
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0277381
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author Shraddha Tiwari
Thakur Dhakal
Ishwari Tiwari
Gab-Sue Jang
Yeonsu Oh
author_facet Shraddha Tiwari
Thakur Dhakal
Ishwari Tiwari
Gab-Sue Jang
Yeonsu Oh
author_sort Shraddha Tiwari
collection DOAJ
description The African swine fever virus (ASFV) was first detected in South Korea on a pig farm in September 2019. Despite active preventive measures to control the spread of ASFV, outbreaks on pig farms and in wild boar have been increasing. In this study, we investigated the spatial contamination area using the minimum convex polygon (MCP) approach, and growth rate using a logistic diffusion model. On the basis of the ASFV outbreak locations recorded from September 17th, 2019, to May 20th, 2022, the MCP area for the second week was 618.41 km2 and expanded to 37959.67 km2 in the final week. The maximum asymptote of the logistic function was considered as the land area of South Korea, and we estimated logistic growth rates of 0.022 km2 per week and 0.094 km2 per month. Administrative bodies should implement preventive and quarantine measures for infectious diseases. The results of this study will be a reference for epidemiologists, ecologists, and policy makers and contribute to the establishment of appropriate quarantine measures for disease control and management.
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spelling doaj.art-fa52b403c46b4ec69a75bf8c9d05e2b72022-12-22T02:28:44ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-011711e027738110.1371/journal.pone.0277381Spatial proliferation of African swine fever virus in South Korea.Shraddha TiwariThakur DhakalIshwari TiwariGab-Sue JangYeonsu OhThe African swine fever virus (ASFV) was first detected in South Korea on a pig farm in September 2019. Despite active preventive measures to control the spread of ASFV, outbreaks on pig farms and in wild boar have been increasing. In this study, we investigated the spatial contamination area using the minimum convex polygon (MCP) approach, and growth rate using a logistic diffusion model. On the basis of the ASFV outbreak locations recorded from September 17th, 2019, to May 20th, 2022, the MCP area for the second week was 618.41 km2 and expanded to 37959.67 km2 in the final week. The maximum asymptote of the logistic function was considered as the land area of South Korea, and we estimated logistic growth rates of 0.022 km2 per week and 0.094 km2 per month. Administrative bodies should implement preventive and quarantine measures for infectious diseases. The results of this study will be a reference for epidemiologists, ecologists, and policy makers and contribute to the establishment of appropriate quarantine measures for disease control and management.https://doi.org/10.1371/journal.pone.0277381
spellingShingle Shraddha Tiwari
Thakur Dhakal
Ishwari Tiwari
Gab-Sue Jang
Yeonsu Oh
Spatial proliferation of African swine fever virus in South Korea.
PLoS ONE
title Spatial proliferation of African swine fever virus in South Korea.
title_full Spatial proliferation of African swine fever virus in South Korea.
title_fullStr Spatial proliferation of African swine fever virus in South Korea.
title_full_unstemmed Spatial proliferation of African swine fever virus in South Korea.
title_short Spatial proliferation of African swine fever virus in South Korea.
title_sort spatial proliferation of african swine fever virus in south korea
url https://doi.org/10.1371/journal.pone.0277381
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