COVID cases falling, but trouble signs arise as winter looms

In this Aug. 23 file photo, a student listens to the teacher's instructions at iPrep Academy on the first day of school in Miami. (AP Photo/Lynne Sladky, File)

Tumbling COVID-19 case counts have some schools around the U.S. considering relaxing their mask rules, but deaths nationally have been ticking up over the past few weeks, some rural hospitals are showing signs of strain, and cold weather is setting in.