Dirty air makes COVID worse, beta variant deadlier than original

Registered Nurse Dorothy Austin distributes a coronavirus disease (COVID-19) vaccine to a Detroit resident at a mobile vaccination clinic led by Central City Integrated Health in Detroit, Michigan, U.S., June 21, 2021.

NEW YORK: Here is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus.

Air pollution makes severe COVID worse