Can climatic factors explain the differences in COVID-19 incidence and severity across the Spanish regions?: An ecological study

Abstract Background Environmental factors play a central role in seasonal epidemics. SARS-CoV-2 infection in Spain has shown a heterogeneous geographical pattern This study aimed to assess the influence of several climatic factors on the infectivity of SARS-CoV-2 and the severity of COVID-19 among t...

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Main Authors: Pedro Muñoz Cacho, José L. Hernández, Marcos López-Hoyos, Víctor M. Martínez-Taboada
Format: Article
Language:English
Published: BMC 2020-10-01
Series:Environmental Health
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12940-020-00660-4
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author Pedro Muñoz Cacho
José L. Hernández
Marcos López-Hoyos
Víctor M. Martínez-Taboada
author_facet Pedro Muñoz Cacho
José L. Hernández
Marcos López-Hoyos
Víctor M. Martínez-Taboada
author_sort Pedro Muñoz Cacho
collection DOAJ
description Abstract Background Environmental factors play a central role in seasonal epidemics. SARS-CoV-2 infection in Spain has shown a heterogeneous geographical pattern This study aimed to assess the influence of several climatic factors on the infectivity of SARS-CoV-2 and the severity of COVID-19 among the Spanish Autonomous Communities (AA.CC.). Methods Data on coronavirus infectivity and severity of COVID-19 disease, as well as the climatic variables were obtained from official sources (Ministry of Health and Spanish Meteorological Agency, respectively). To assess the possible influence of climate on the development of the disease, data on ultraviolet radiation (UVR) were collected during the months before the start of the pandemic. To analyze its influence on the infectivity of SARS-CoV-2, data on UVR, temperature, and humidity were obtained from the months of highest contagiousness to the peak of the pandemic. Results From October 2019 to January 2020, mean UVR was significantly related not only to SARS-CoV-2 infection (cumulative incidence -previous 14 days- × 105 habitants, rho = − 0.0,666; p = 0.009), but also with COVID-19 severity, assessed as hospital admissions (rho = − 0.626; p = 0.017) and ICU admissions (rho = − 0.565; p = 0.035). Besides, temperature (February: rho = − 0.832; p < 0.001 and March: rho = − 0.904; p < 0.001), was the main climatic factor responsible for the infectivity of the coronavirus and directly contributed to a different spread of SARS-CoV-2 across the Spanish regions. Conclusions Climatic factors may partially explain the differences in COVID-19 incidence and severity across the different Spanish regions. The knowledge of these factors could help to develop preventive and public health actions against upcoming outbreaks of the disease.
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spelling doaj.art-ab9c38618ad646f8aef283049be46ad92022-12-21T19:21:05ZengBMCEnvironmental Health1476-069X2020-10-011911810.1186/s12940-020-00660-4Can climatic factors explain the differences in COVID-19 incidence and severity across the Spanish regions?: An ecological studyPedro Muñoz Cacho0José L. Hernández1Marcos López-Hoyos2Víctor M. Martínez-Taboada3Gerencia de Atención Primaria, Servicio Cántabro de SaludDepartment of Internal Medicine, Hospital Marqués de Valdecilla-IDIVALDivision of Immunology, Hospital Marqués de Valdecilla-IDIVALFacultad de Medicina, University of CantabriaAbstract Background Environmental factors play a central role in seasonal epidemics. SARS-CoV-2 infection in Spain has shown a heterogeneous geographical pattern This study aimed to assess the influence of several climatic factors on the infectivity of SARS-CoV-2 and the severity of COVID-19 among the Spanish Autonomous Communities (AA.CC.). Methods Data on coronavirus infectivity and severity of COVID-19 disease, as well as the climatic variables were obtained from official sources (Ministry of Health and Spanish Meteorological Agency, respectively). To assess the possible influence of climate on the development of the disease, data on ultraviolet radiation (UVR) were collected during the months before the start of the pandemic. To analyze its influence on the infectivity of SARS-CoV-2, data on UVR, temperature, and humidity were obtained from the months of highest contagiousness to the peak of the pandemic. Results From October 2019 to January 2020, mean UVR was significantly related not only to SARS-CoV-2 infection (cumulative incidence -previous 14 days- × 105 habitants, rho = − 0.0,666; p = 0.009), but also with COVID-19 severity, assessed as hospital admissions (rho = − 0.626; p = 0.017) and ICU admissions (rho = − 0.565; p = 0.035). Besides, temperature (February: rho = − 0.832; p < 0.001 and March: rho = − 0.904; p < 0.001), was the main climatic factor responsible for the infectivity of the coronavirus and directly contributed to a different spread of SARS-CoV-2 across the Spanish regions. Conclusions Climatic factors may partially explain the differences in COVID-19 incidence and severity across the different Spanish regions. The knowledge of these factors could help to develop preventive and public health actions against upcoming outbreaks of the disease.http://link.springer.com/article/10.1186/s12940-020-00660-4Climatic factorsSARS-CoV-2 infectionCOVID-19Ultraviolet radiationTemperature
spellingShingle Pedro Muñoz Cacho
José L. Hernández
Marcos López-Hoyos
Víctor M. Martínez-Taboada
Can climatic factors explain the differences in COVID-19 incidence and severity across the Spanish regions?: An ecological study
Environmental Health
Climatic factors
SARS-CoV-2 infection
COVID-19
Ultraviolet radiation
Temperature
title Can climatic factors explain the differences in COVID-19 incidence and severity across the Spanish regions?: An ecological study
title_full Can climatic factors explain the differences in COVID-19 incidence and severity across the Spanish regions?: An ecological study
title_fullStr Can climatic factors explain the differences in COVID-19 incidence and severity across the Spanish regions?: An ecological study
title_full_unstemmed Can climatic factors explain the differences in COVID-19 incidence and severity across the Spanish regions?: An ecological study
title_short Can climatic factors explain the differences in COVID-19 incidence and severity across the Spanish regions?: An ecological study
title_sort can climatic factors explain the differences in covid 19 incidence and severity across the spanish regions an ecological study
topic Climatic factors
SARS-CoV-2 infection
COVID-19
Ultraviolet radiation
Temperature
url http://link.springer.com/article/10.1186/s12940-020-00660-4
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