Wildfire smoke may have contributed to thousands of extra COVID-19 cases and deaths in western U.S. in 2020 | News | Harvard T.H. Chan School of Public Health

Wildfire smoke may have contributed to thousands of extra COVID-19 cases and deaths in western U.S. in 2020 | News | Harvard T.H. Chan School of Public Health: Thousands of COVID-19 cases and deaths in the western U.S. in 2020 may be attributable to increases in particulate air pollution from wildfire smoke.