US wildfire pollution linked to more covid-19 cases and deaths

Polluted air caused by smoke released from record-breaking wildfires in the US last year has been linked to a strong increase in covid-19 cases and deaths

US wildfire pollution linked to more covid-19 cases and deaths
Polluted air caused by smoke released from record-breaking wildfires in the US last year has been linked to a strong increase in covid-19 cases and deaths