COVID-19 dynamics in Madrid (Spain): A new convolutional model to find out the missing information during the first three waves.

This article presents a novel mathematical model to describe the spread of an infectious disease in the presence of social and health events: it uses 15 compartments, 7 convolution integrals and 4 types of infected individuals, asymptomatic, mild, moderate and severe. A unique feature of this work i...

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Main Authors: Efrén M Benavides, María Ordobás Gavín, Raúl Mallaina García, Sara de Miguel García, Maira Ortíz Pinto, Ramón Doménech Gimenez, Ana Gandarillas Grande
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.0279080
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author Efrén M Benavides
María Ordobás Gavín
Raúl Mallaina García
Sara de Miguel García
Maira Ortíz Pinto
Ramón Doménech Gimenez
Ana Gandarillas Grande
author_facet Efrén M Benavides
María Ordobás Gavín
Raúl Mallaina García
Sara de Miguel García
Maira Ortíz Pinto
Ramón Doménech Gimenez
Ana Gandarillas Grande
author_sort Efrén M Benavides
collection DOAJ
description This article presents a novel mathematical model to describe the spread of an infectious disease in the presence of social and health events: it uses 15 compartments, 7 convolution integrals and 4 types of infected individuals, asymptomatic, mild, moderate and severe. A unique feature of this work is that the convolutions and the compartments have been selected to maximize the number of independent input parameters, leading to a 56-parameter model where only one had to evolve over time. The results show that 1) the proposed mathematical model is flexible and robust enough to describe the complex dynamic of the pandemic during the first three waves of the COVID-19 spread in the region of Madrid (Spain) and 2) the proposed model allows us to calculate the number of asymptomatic individuals and the number of persons who presented antibodies during the first waves. The study shows that the following results are compatible with the reported data: close to 28% of the infected individuals were asymptomatic during the three waves, close to 29% of asymptomatic individuals were detected during the subsequent waves and close to 26% of the Madrid population had antibodies at the end of the third wave. This calculated number of persons with antibodies is in great agreement with four direct measurements obtained from an independent sero-epidemiological research. In addition, six calculated curves (total number of confirmed cases, asymptomatic who are confirmed as positive, hospital admissions and discharges and intensive care units admissions) show good agreement with data from an epidemiological surveillance database.
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spelling doaj.art-c67f6de153a841a1a4812a94f7263caa2023-01-14T05:31:22ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-011712e027908010.1371/journal.pone.0279080COVID-19 dynamics in Madrid (Spain): A new convolutional model to find out the missing information during the first three waves.Efrén M BenavidesMaría Ordobás GavínRaúl Mallaina GarcíaSara de Miguel GarcíaMaira Ortíz PintoRamón Doménech GimenezAna Gandarillas GrandeThis article presents a novel mathematical model to describe the spread of an infectious disease in the presence of social and health events: it uses 15 compartments, 7 convolution integrals and 4 types of infected individuals, asymptomatic, mild, moderate and severe. A unique feature of this work is that the convolutions and the compartments have been selected to maximize the number of independent input parameters, leading to a 56-parameter model where only one had to evolve over time. The results show that 1) the proposed mathematical model is flexible and robust enough to describe the complex dynamic of the pandemic during the first three waves of the COVID-19 spread in the region of Madrid (Spain) and 2) the proposed model allows us to calculate the number of asymptomatic individuals and the number of persons who presented antibodies during the first waves. The study shows that the following results are compatible with the reported data: close to 28% of the infected individuals were asymptomatic during the three waves, close to 29% of asymptomatic individuals were detected during the subsequent waves and close to 26% of the Madrid population had antibodies at the end of the third wave. This calculated number of persons with antibodies is in great agreement with four direct measurements obtained from an independent sero-epidemiological research. In addition, six calculated curves (total number of confirmed cases, asymptomatic who are confirmed as positive, hospital admissions and discharges and intensive care units admissions) show good agreement with data from an epidemiological surveillance database.https://doi.org/10.1371/journal.pone.0279080
spellingShingle Efrén M Benavides
María Ordobás Gavín
Raúl Mallaina García
Sara de Miguel García
Maira Ortíz Pinto
Ramón Doménech Gimenez
Ana Gandarillas Grande
COVID-19 dynamics in Madrid (Spain): A new convolutional model to find out the missing information during the first three waves.
PLoS ONE
title COVID-19 dynamics in Madrid (Spain): A new convolutional model to find out the missing information during the first three waves.
title_full COVID-19 dynamics in Madrid (Spain): A new convolutional model to find out the missing information during the first three waves.
title_fullStr COVID-19 dynamics in Madrid (Spain): A new convolutional model to find out the missing information during the first three waves.
title_full_unstemmed COVID-19 dynamics in Madrid (Spain): A new convolutional model to find out the missing information during the first three waves.
title_short COVID-19 dynamics in Madrid (Spain): A new convolutional model to find out the missing information during the first three waves.
title_sort covid 19 dynamics in madrid spain a new convolutional model to find out the missing information during the first three waves
url https://doi.org/10.1371/journal.pone.0279080
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