The CDC fumbled its communication with public health officials and underestimated the threat of the coronavirus even as it gained a foothold in the United States, according to hundreds of pages of documents ProPublica obtained.

Facing a ventilator shortage, doctors are considering using one machine for multiple patients in respiratory failure. But it’s at best a stopgap and can injure the lungs.

A nonprofit started by the billionaire co-founder of Home Depot says plants are ready to produce the drug but for “red tape.” Experts caution it’s unproven and possibly dangerous.