Exploring the human-animal interface of Ebola virus disease outbreaks

Whereas the prevention and treatment of Ebola virus disease (EVD) have been well studied after the 2013–16 outbreak in West Africa, the emergence of human outbreaks and their mechanisms have yet to be explored in detail. In particular, it has yet to be clarified whether the emergence records offer a...

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Main Authors: Luis Ponce, Ryo Kinoshita, Hiroshi Nishiura
Format: Article
Language:English
Published: AIMS Press 2019-04-01
Series:Mathematical Biosciences and Engineering
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/mbe.2019155?viewType=HTML
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author Luis Ponce
Ryo Kinoshita
Hiroshi Nishiura
author_facet Luis Ponce
Ryo Kinoshita
Hiroshi Nishiura
author_sort Luis Ponce
collection DOAJ
description Whereas the prevention and treatment of Ebola virus disease (EVD) have been well studied after the 2013–16 outbreak in West Africa, the emergence of human outbreaks and their mechanisms have yet to be explored in detail. In particular, it has yet to be clarified whether the emergence records offer any theoretical insight into the changing interface between humans and animal reservoirs. Here we explore the epidemiological record of emergence, investigating predominant causes of the introduction to the human population, their characteristics, and frequencies. We retrieved data of every outbreak that can be traced back to a single zoonotic spillover. Through statistical analysis, we have shown that (ⅰ) the leading cause of emergence was eating and hunting habits, (ⅱ) primates act as the main source of zoonotic spillover, and (ⅲ) Zaire ebolavirus is the most virulent type. Moreover, the trend of emergence was demonstrated not to be a Poisson process, indicating that some unknown, underlying, non-random mechanisms are likely to govern the spillover event. In the Democratic Republic of Congo, an increasing emergence trend was favored compared with a purely random emergence model. Outbreak event data and their causative viruses should be explored biologically and epidemiologically to possibly predict future outbreak events.
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spelling doaj.art-cd4d5542a60d4df2bf821e1544ef0eed2022-12-21T18:20:07ZengAIMS PressMathematical Biosciences and Engineering1551-00182019-04-011643130314310.3934/mbe.2019155Exploring the human-animal interface of Ebola virus disease outbreaksLuis Ponce 0Ryo Kinoshita1Hiroshi Nishiura21. Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA2. Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan2. Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, JapanWhereas the prevention and treatment of Ebola virus disease (EVD) have been well studied after the 2013–16 outbreak in West Africa, the emergence of human outbreaks and their mechanisms have yet to be explored in detail. In particular, it has yet to be clarified whether the emergence records offer any theoretical insight into the changing interface between humans and animal reservoirs. Here we explore the epidemiological record of emergence, investigating predominant causes of the introduction to the human population, their characteristics, and frequencies. We retrieved data of every outbreak that can be traced back to a single zoonotic spillover. Through statistical analysis, we have shown that (ⅰ) the leading cause of emergence was eating and hunting habits, (ⅱ) primates act as the main source of zoonotic spillover, and (ⅲ) Zaire ebolavirus is the most virulent type. Moreover, the trend of emergence was demonstrated not to be a Poisson process, indicating that some unknown, underlying, non-random mechanisms are likely to govern the spillover event. In the Democratic Republic of Congo, an increasing emergence trend was favored compared with a purely random emergence model. Outbreak event data and their causative viruses should be explored biologically and epidemiologically to possibly predict future outbreak events.https://www.aimspress.com/article/doi/10.3934/mbe.2019155?viewType=HTMLfiloviridaeebola hemorrhagic feveremergencereservoirzoonosispoisson processoutbreakepidemic
spellingShingle Luis Ponce
Ryo Kinoshita
Hiroshi Nishiura
Exploring the human-animal interface of Ebola virus disease outbreaks
Mathematical Biosciences and Engineering
filoviridae
ebola hemorrhagic fever
emergence
reservoir
zoonosis
poisson process
outbreak
epidemic
title Exploring the human-animal interface of Ebola virus disease outbreaks
title_full Exploring the human-animal interface of Ebola virus disease outbreaks
title_fullStr Exploring the human-animal interface of Ebola virus disease outbreaks
title_full_unstemmed Exploring the human-animal interface of Ebola virus disease outbreaks
title_short Exploring the human-animal interface of Ebola virus disease outbreaks
title_sort exploring the human animal interface of ebola virus disease outbreaks
topic filoviridae
ebola hemorrhagic fever
emergence
reservoir
zoonosis
poisson process
outbreak
epidemic
url https://www.aimspress.com/article/doi/10.3934/mbe.2019155?viewType=HTML
work_keys_str_mv AT luisponce exploringthehumananimalinterfaceofebolavirusdiseaseoutbreaks
AT ryokinoshita exploringthehumananimalinterfaceofebolavirusdiseaseoutbreaks
AT hiroshinishiura exploringthehumananimalinterfaceofebolavirusdiseaseoutbreaks