But it also influences human behavior, which moves the virus from one host to another. Research led by The University of Texas at Austin is adding some clarity on weather's role in COVID-19 infection, with a new study finding that temperature and humidity do not play a significant role in coronavirus spread. That means whether it's hot or cold outside, the transmission of COVID-19 from one person to the next depends almost entirely on human behavior. "In terms of relative importance, weather is one of the last parameters." "The effect of weather is low and other features such as mobility have more impact than weather," said Dev Niyogi, a professor at UT Austin's Jackson School of Geosciences and Cockrell School of Engineering who led the research. 26 in the International Journal of Environmental Research and Public Health.Ĭo-authors are Sajad Jamshidi, a research assistant at Purdue University, and Maryam Baniasad, a doctoral candidate at Ohio State University. The study defined weather as "equivalent air temperature," which combines temperature and humidity into a single value. The scientists than analyzed how this value tracked with coronavirus spread in different areas from March to July 2020, with their scale ranging from U.S. States and counties, to countries, regions and the world at large.Īt the county and state scale, the researchers also investigated the relationship between coronavirus infection and human behavior, using cellphone data to study travel habits.
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