Abstract

As a result of its global spread, COVID-19 is currently regarded as a pandemic. Whether or not climatic factors have an effect on COVID-19 transmission and diffusion is a crucial aspect. On the basis of the significance of relationships between environmental factors (humidity, temperature, rainfall, population density, and speed of wind) and COVID-19, this research offers a thorough evaluation and meta-analysis. Review Manager (RevMan) version 5.4 was used to conduct the meta-analysis. The study's 16 articles have conducted in-depth analysis on over 110 datasets that are country-specific. We noted significant correlations between temperature (0.31 [0.26, 0.39] for fixed effect incidence), humidity (0.64 [0.55, 0.75] for fixed effect incidence), wind speed (0.50 [0.32, 0.77] for fixed effect incidence), and population density (1.53 [1.34, 1.75] for fixed effect incidence) and the incidence of COVID-19 (p < 0.01). As a result, we can show that environmental aspects may be important elements of COVID-19.