A roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines includes a higher complication rate with Covid-19 versus the flu.

A rheumatoid arthritis drug developed by Genentech proved to be effective in benefitting patients who have Covid-19-associated pneumonia, according to new late-stage clinical trial data.

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.