Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

A Retrospective Analysis of Influence of Environmental/Air Temperature and Relative Humidity on SARS-CoV-2 Outbreak

Version 1 : Received: 20 March 2020 / Approved: 23 March 2020 / Online: 23 March 2020 (01:30:06 CET)

A peer-reviewed article of this Preprint also exists.

Rahman MA, Hossain MG, Singh AC, Islam MS, Islam MA. A Retrospective Analysis of Influence of Environmental/Air Temperature and Relative Humidity on SARS-CoV-2 Outbreak. J Pure Appl Microbiol. 2020;14(3):1705-1714. doi: 10.22207/ JPAM.14.3.09 Rahman MA, Hossain MG, Singh AC, Islam MS, Islam MA. A Retrospective Analysis of Influence of Environmental/Air Temperature and Relative Humidity on SARS-CoV-2 Outbreak. J Pure Appl Microbiol. 2020;14(3):1705-1714. doi: 10.22207/ JPAM.14.3.09

Abstract

The pandemic threat SARS-CoV-2 is now beyond control though the country of origin of this virus had already been limited for the new infection. Number of infected people and countries have been increasing day by day. Considering the previous pandemic flues, it is hypothesizing that COVID-19 will be reduced with warming the global environmental temperature. Therefore, the current study was aimed to analyze the effect of temperature and relative humidity (RH) on spreading of SARS-CoV-2 infection. The COVID-19 confirmed cases of 31 different states in China and 70 cities of 11 countries were obtained from several online databases. The real time temperature and humidity of the respective regions were taken from an online weather forecasting data source. Correlation analyses showed that SARS-CoV-2 infectivity and spreading negatively correlated with temperature of most of the states of China or cities of the world or in a country. The effect of humidity on COVID-19 was found to be positively correlated inside the China and difference of humidity was not found among countries and/or various regions of the world. Moreover, a minimum number of COVID-19 cases have been confirmed in the temperate regions compared to regions/countries compared to regions/countries with relatively low temperature. In conclusion, the SARS-CoV-2 infection has been found in a wide range of temperatures. It might be hypothesized that comparatively elevated air temperature could play a detrimental effect for SARS-CoV-2 spread.

Keywords

SARS-CoV-2; COVID-19; infectivity; temperature; humidity

Subject

Biology and Life Sciences, Virology

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