Environmental determinants of COVID-19 transmission across a wide climatic gradient in Chile
Open Access
- 10 May 2021
- journal article
- research article
- Published by Springer Science and Business Media LLC in Scientific Reports
- Vol. 11 (1), 1-8
- https://doi.org/10.1038/s41598-021-89213-4
Abstract
Several studies have examined the transmission dynamics of the novel COVID-19 disease in different parts of the world. Some have reported relationships with various environmental variables, suggesting that spread of the disease is enhanced in colder and drier climates. However, evidence is still scarce and mostly limited to a few countries, particularly from Asia. We examined the potential role of multiple environmental variables in COVID-19 infection rate [measured as mean relative infection rate = (number of infected inhabitants per week / total population) × 100.000) from February 23 to August 16, 2020 across 360 cities of Chile. Chile has a large climatic gradient (≈ 40º of latitude, ≈ 4000 m of altitude and 5 climatic zones, from desert to tundra), but all cities share their social behaviour patterns and regulations. Our results indicated that COVID-19 transmission in Chile was mostly related to three main climatic factors (minimum temperature, atmospheric pressure and relative humidity). Transmission was greater in colder and drier cities and when atmospheric pressure was lower. The results of this study support some previous findings about the main climatic determinants of COVID-19 transmission, which may be useful for decision-making and management of the disease.Funding Information
- Initiation Fondecyt (11170390)
- CONICYT-PFCHA/Doctorado Nacional (2019-21191862)
- CONICYT-PFCHA/Magíster Nacional (2020-22200247)
This publication has 38 references indexed in Scilit:
- Influenza and humidity – Why a bit more damp may be good for you!Journal of Infection, 2015
- Isolated and synergistic effects of PM10 and average temperature on cardiovascular and respiratory mortalityRevista de Saúde Pública, 2014
- Lagged Effect of Diurnal Temperature Range on Mortality in a Subtropical Megacity of ChinaPLOS ONE, 2013
- The Effects of Temperature and Relative Humidity on the Viability of the SARS CoronavirusAdvances in Virology, 2011
- Dynamics of Airborne Influenza A Viruses Indoors and Dependence on HumidityPLOS ONE, 2011
- Oblique Du-Fort Frankel Beam Propagation MethodAdvances in OptoElectronics, 2010
- Influenza Virus Transmission Is Dependent on Relative Humidity and TemperaturePLoS Pathogens, 2007
- A climatologic investigation of the SARS-CoV outbreak in Beijing, ChinaAmerican Journal of Infection Control, 2006
- An initial investigation of the association between the SARS outbreak and weather: with the view of the environmental temperature and its variationJournal of Epidemiology and Community Health, 2005
- Generalized Inverses, Ridge Regression, Biased Linear Estimation, and Nonlinear EstimationTechnometrics, 1970