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Did anomalous atmospheric circulation favor the spread of COVID-19 in Europe?

Abstract: The current pandemic of coronavirus disease 2019 (COVID-19) caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is having negative health, social and economic consequences worldwide. In Europe, the pandemic started to develop strongly at the end of February and beginning of March 2020. Subsequently, it spread over the continent, with special virulence in northern Italy and inland Spain. In this study we show that an unusual persistent anticyclonic situation prevailing in southwestern Europe during February 2020 (i.e. anomalously strong positive phase of the North Atlantic and Arctic Oscillations) could have resulted in favorable conditions, e.g., in terms of air temperature and humidity among other factors, in Italy and Spain for a quicker spread of the virus compared with the rest of the European countries. It seems plausible that the strong atmospheric stability and associated dry conditions that dominated in these regions may have favored the virus propagation, both outdoors and especially indoors, by short-range droplet and aerosol (airborne) transmission, or/and by changing social contact patterns. Later recent atmospheric circulation conditions in Europe (July 2020) and the U.S. (October 2020) seem to support our hypothesis, although further research is needed in order to evaluate other confounding variables. Interestingly, the atmospheric conditions during the Spanish flu pandemic in 1918 seem to have resembled at some stage with the current COVID-19 pandemic.

 Fuente: Environmental Research 194 (2021) 110626

Editorial: Elsevier

 Fecha de publicación: 01/03/2021

Nº de páginas: 9

Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.envres.2020.110626

ISSN: 0013-9351,1096-0953

Proyecto español: PID2019-105901RB-I00

Url de la publicación: https://doi.org/10.1016/j.envres.2020.110626

Autores/as

SANCHEZ LORENZO, A.

VAQUERO MARTÍNEZ, J.

CALBÓ, J.

WILD, M.

LOPEZ BUSTINS, J.A.

VAQUERO, J.M.

FOLINI, D.

ANTÓN, M.