Re-analyzing the SARS-CoV-2 series using an extended integer-valued time series models: A situational assessment of the COVID-19 in Mauritius

This paper proposes some high-ordered integer-valued auto-regressive time series process of order p (INAR(p)) with Zero-Inflated and Poisson-mixtures innovation distributions, wherein the predictor functions in these mentioned distributions allow for covariate specification, in particular, time-depe...

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Main Authors: Ashwinee Devi Soobhug, Homeswaree Jowaheer, Naushad Mamode Khan, Neeshti Reetoo, Kursheed Meethoo-Badulla, Laurent Musango, Célestin C. Kokonendji, Azmi Chutoo, Nawel Aries
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8824322/?tool=EBI
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author Ashwinee Devi Soobhug
Homeswaree Jowaheer
Naushad Mamode Khan
Neeshti Reetoo
Kursheed Meethoo-Badulla
Laurent Musango
Célestin C. Kokonendji
Azmi Chutoo
Nawel Aries
author_facet Ashwinee Devi Soobhug
Homeswaree Jowaheer
Naushad Mamode Khan
Neeshti Reetoo
Kursheed Meethoo-Badulla
Laurent Musango
Célestin C. Kokonendji
Azmi Chutoo
Nawel Aries
author_sort Ashwinee Devi Soobhug
collection DOAJ
description This paper proposes some high-ordered integer-valued auto-regressive time series process of order p (INAR(p)) with Zero-Inflated and Poisson-mixtures innovation distributions, wherein the predictor functions in these mentioned distributions allow for covariate specification, in particular, time-dependent covariates. The proposed time series structures are tested suitable to model the SARs-CoV-2 series in Mauritius which demonstrates excess zeros and hence significant over-dispersion with non-stationary trend. In addition, the INAR models allow the assessment of possible causes of COVID-19 in Mauritius. The results illustrate that the event of Vaccination and COVID-19 Stringency index are the most influential factors that can reduce the locally acquired COVID-19 cases and ultimately, the associated death cases. Moreover, the INAR(7) with Zero-inflated Negative Binomial innovations provides the best fitting and reliable Root Mean Square Errors, based on some short term forecasts. Undeniably, these information will hugely be useful to Mauritian authorities for implementation of comprehensive policies.
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spelling doaj.art-687d897f0854444a8bd34cae6bc3ec522022-12-22T00:05:37ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-01172Re-analyzing the SARS-CoV-2 series using an extended integer-valued time series models: A situational assessment of the COVID-19 in MauritiusAshwinee Devi SoobhugHomeswaree JowaheerNaushad Mamode KhanNeeshti ReetooKursheed Meethoo-BadullaLaurent MusangoCélestin C. KokonendjiAzmi ChutooNawel AriesThis paper proposes some high-ordered integer-valued auto-regressive time series process of order p (INAR(p)) with Zero-Inflated and Poisson-mixtures innovation distributions, wherein the predictor functions in these mentioned distributions allow for covariate specification, in particular, time-dependent covariates. The proposed time series structures are tested suitable to model the SARs-CoV-2 series in Mauritius which demonstrates excess zeros and hence significant over-dispersion with non-stationary trend. In addition, the INAR models allow the assessment of possible causes of COVID-19 in Mauritius. The results illustrate that the event of Vaccination and COVID-19 Stringency index are the most influential factors that can reduce the locally acquired COVID-19 cases and ultimately, the associated death cases. Moreover, the INAR(7) with Zero-inflated Negative Binomial innovations provides the best fitting and reliable Root Mean Square Errors, based on some short term forecasts. Undeniably, these information will hugely be useful to Mauritian authorities for implementation of comprehensive policies.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8824322/?tool=EBI
spellingShingle Ashwinee Devi Soobhug
Homeswaree Jowaheer
Naushad Mamode Khan
Neeshti Reetoo
Kursheed Meethoo-Badulla
Laurent Musango
Célestin C. Kokonendji
Azmi Chutoo
Nawel Aries
Re-analyzing the SARS-CoV-2 series using an extended integer-valued time series models: A situational assessment of the COVID-19 in Mauritius
PLoS ONE
title Re-analyzing the SARS-CoV-2 series using an extended integer-valued time series models: A situational assessment of the COVID-19 in Mauritius
title_full Re-analyzing the SARS-CoV-2 series using an extended integer-valued time series models: A situational assessment of the COVID-19 in Mauritius
title_fullStr Re-analyzing the SARS-CoV-2 series using an extended integer-valued time series models: A situational assessment of the COVID-19 in Mauritius
title_full_unstemmed Re-analyzing the SARS-CoV-2 series using an extended integer-valued time series models: A situational assessment of the COVID-19 in Mauritius
title_short Re-analyzing the SARS-CoV-2 series using an extended integer-valued time series models: A situational assessment of the COVID-19 in Mauritius
title_sort re analyzing the sars cov 2 series using an extended integer valued time series models a situational assessment of the covid 19 in mauritius
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8824322/?tool=EBI
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