The impact of Brazil’s transport network on the spread of COVID-19

Abstract The transport network between cities is key in understanding epidemic outbreaks, especially in a vast country like Brazil with 5569 cities spread out over 8.5 million square kilometers. In order to study the COVID-19 spread in Brazil, we built a transport network where each city is a node a...

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Main Authors: Giovanna Cavali Silva, Evandro Marcos Saidel Ribeiro
Format: Article
Language:English
Published: Nature Portfolio 2023-02-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-27139-1
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author Giovanna Cavali Silva
Evandro Marcos Saidel Ribeiro
author_facet Giovanna Cavali Silva
Evandro Marcos Saidel Ribeiro
author_sort Giovanna Cavali Silva
collection DOAJ
description Abstract The transport network between cities is key in understanding epidemic outbreaks, especially in a vast country like Brazil with 5569 cities spread out over 8.5 million square kilometers. In order to study the COVID-19 spread in Brazil, we built a transport network where each city is a node and the edges are connections by land and air. Our findings have shown that by adding air connections, the average path length substantially decreases (70%) while the clustering coefficient remains almost unchanged, very typical of small-world networks. The airways are shortcuts connecting previously distant cities and hubs, therefore shrinking the distances in the network. Also, the cities with airports are central nodes, which makes them dissemination hotspots and key targets for interventions.
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spelling doaj.art-8fc6f08f72c44e98a482bf65b69c463b2023-02-12T12:12:35ZengNature PortfolioScientific Reports2045-23222023-02-011311710.1038/s41598-022-27139-1The impact of Brazil’s transport network on the spread of COVID-19Giovanna Cavali Silva0Evandro Marcos Saidel Ribeiro1PECE Programa de Educação Continuada, Escola Politécnica da Universidade de São PauloFaculdade de Economia Administração e Contabilidade de Ribeirão Preto, Universidade de São PauloAbstract The transport network between cities is key in understanding epidemic outbreaks, especially in a vast country like Brazil with 5569 cities spread out over 8.5 million square kilometers. In order to study the COVID-19 spread in Brazil, we built a transport network where each city is a node and the edges are connections by land and air. Our findings have shown that by adding air connections, the average path length substantially decreases (70%) while the clustering coefficient remains almost unchanged, very typical of small-world networks. The airways are shortcuts connecting previously distant cities and hubs, therefore shrinking the distances in the network. Also, the cities with airports are central nodes, which makes them dissemination hotspots and key targets for interventions.https://doi.org/10.1038/s41598-022-27139-1
spellingShingle Giovanna Cavali Silva
Evandro Marcos Saidel Ribeiro
The impact of Brazil’s transport network on the spread of COVID-19
Scientific Reports
title The impact of Brazil’s transport network on the spread of COVID-19
title_full The impact of Brazil’s transport network on the spread of COVID-19
title_fullStr The impact of Brazil’s transport network on the spread of COVID-19
title_full_unstemmed The impact of Brazil’s transport network on the spread of COVID-19
title_short The impact of Brazil’s transport network on the spread of COVID-19
title_sort impact of brazil s transport network on the spread of covid 19
url https://doi.org/10.1038/s41598-022-27139-1
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