Purpose To examine the association between meteorological factors (temperature, relative humidity, wind speed, and UV radiation) and transmission capacity of COVID-19. Methods We collected daily numbers of COVID-19 cases in 202 locations in 8 countries. We matched meteorological data from the NOAA National Centers for Environmental Information. We used a time-frequency approach to examine the possible association between meteorological conditions and basic reproductive number (R 0 ) of COVID-19. We determined the correlations between meteorological factors and R 0 of COVID-19 using multiple linear regression models and meta-analysis. We further validated our results using a susceptible-exposed-infectious-recovered (SEIR) metapopulation model to simulate the changes of daily cases of COVID-19 in China under different temperatures and relative humidity conditions. Principal results Temperature did not exhibit significant association with R 0 of COVID-19 (meta p = 0.446). Also, relative humidity (meta p = 0.215), wind speed (meta p = 0.986), and ultraviolet (UV) radiation (meta p = 0.491) were not significantly associated with R 0 either. The SEIR model in China showed that with a wide range of meteorological conditions, the number of COVID-19 confirmed cases would not change substantially. Conclusions Meteorological conditions did not have statistically significant associations with the R 0 of COVID-19. Warmer weather alone seems unlikely to reduce the COVID-19 transmission. Graphical abstract Unlabelled Image Highlights • Temperature did not exhibit significant associations with COVID-19’s R 0 . • Other meteorological factors weren’t significantly associated with COVID-19’s R 0 . • It’s unlikely to depend on warmer weather to reduce the COVID-19 transmission.
【저자키워드】 SARS-CoV-2, temperature, Ultraviolet radiation, Meteorological factors, 【초록키워드】 COVID-19, Meta-analysis, Transmission, China, ultraviolet, correlation, Other, change, association, Image, basic reproductive number, Multiple linear regression, COVID-19 transmission, confirmed case, Radiation, Factor, Abstract, COVID-19 case, center, SEIR, approach, principal, collected, significantly, unlikely, condition, reduce, statistically significant, conditions, Warmer, with COVID-19, 【제목키워드】 COVID-19, country, unlikely, reduce, ecological, Warmer,