Estimating the risk of pandemic avian influenza

Outbreaks of highly pathogenic strains of avian influenza (HPAI) cause high mortality in avian populations worldwide. When spread from avian reservoirs to humans, HPAI infections cause mortality in about 50% of human infections. Cases of human-to-human transmission of HPAI are relatively rare, and h...

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Main Authors: Amita Tripathi, Harish Chandra Dhakal, Khagendra Adhikari, Ramesh Chandra Timsina, Lindi M. Wahl
Format: Article
Language:English
Published: Taylor & Francis Group 2021-01-01
Series:Journal of Biological Dynamics
Subjects:
Online Access:http://dx.doi.org/10.1080/17513758.2021.1942570
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author Amita Tripathi
Harish Chandra Dhakal
Khagendra Adhikari
Ramesh Chandra Timsina
Lindi M. Wahl
author_facet Amita Tripathi
Harish Chandra Dhakal
Khagendra Adhikari
Ramesh Chandra Timsina
Lindi M. Wahl
author_sort Amita Tripathi
collection DOAJ
description Outbreaks of highly pathogenic strains of avian influenza (HPAI) cause high mortality in avian populations worldwide. When spread from avian reservoirs to humans, HPAI infections cause mortality in about 50% of human infections. Cases of human-to-human transmission of HPAI are relatively rare, and have, to date, only been reported in situations of close contact. These transmissions have resulted in isolated clusters of human HPAI infections, but have not yet caused a pandemic. Given the large number of human H5N1 HPAI infections to date, none of which has resulted in a pandemic, we estimate an upper bound on the probability of H5N1 pandemic emergence. We use this estimate to provide the likelihood of observing such a pandemic over the next decade. We then develop a more accurate parameter-based estimate of the emergence probability and predict the likelihood that, through rare mutations, an H5N1 influenza pandemic will emerge over the same time span.
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spelling doaj.art-d98b2573143a47d2a8e0e6ef38729ed92022-12-21T16:58:26ZengTaylor & Francis GroupJournal of Biological Dynamics1751-37581751-37662021-01-0115132734110.1080/17513758.2021.19425701942570Estimating the risk of pandemic avian influenzaAmita Tripathi0Harish Chandra Dhakal1Khagendra Adhikari2Ramesh Chandra Timsina3Lindi M. Wahl4Banaras Hindu UniversityBirendra Multiple Campus, Tribhuvan UniversityAmrit Science Campus, Tribhuvan UniversityPatan Multiple Campus, Tribhuvan UniversityWestern UniversityOutbreaks of highly pathogenic strains of avian influenza (HPAI) cause high mortality in avian populations worldwide. When spread from avian reservoirs to humans, HPAI infections cause mortality in about 50% of human infections. Cases of human-to-human transmission of HPAI are relatively rare, and have, to date, only been reported in situations of close contact. These transmissions have resulted in isolated clusters of human HPAI infections, but have not yet caused a pandemic. Given the large number of human H5N1 HPAI infections to date, none of which has resulted in a pandemic, we estimate an upper bound on the probability of H5N1 pandemic emergence. We use this estimate to provide the likelihood of observing such a pandemic over the next decade. We then develop a more accurate parameter-based estimate of the emergence probability and predict the likelihood that, through rare mutations, an H5N1 influenza pandemic will emerge over the same time span.http://dx.doi.org/10.1080/17513758.2021.1942570mathematical epidemiologyavian influenzapandemic emergencestochastic model
spellingShingle Amita Tripathi
Harish Chandra Dhakal
Khagendra Adhikari
Ramesh Chandra Timsina
Lindi M. Wahl
Estimating the risk of pandemic avian influenza
Journal of Biological Dynamics
mathematical epidemiology
avian influenza
pandemic emergence
stochastic model
title Estimating the risk of pandemic avian influenza
title_full Estimating the risk of pandemic avian influenza
title_fullStr Estimating the risk of pandemic avian influenza
title_full_unstemmed Estimating the risk of pandemic avian influenza
title_short Estimating the risk of pandemic avian influenza
title_sort estimating the risk of pandemic avian influenza
topic mathematical epidemiology
avian influenza
pandemic emergence
stochastic model
url http://dx.doi.org/10.1080/17513758.2021.1942570
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