Investors’ worries about the possibility of rising inflation as the U.S. economy recovers from the coronavirus pandemic fueled three days of heavy selling.

Colonial Pipeline says deliveries are being made in all of its markets, but it would take ‘several days’ to return to normal.

Labor groups and others warn that employees at stores, restaurants and bars could be left exposed to COVID-19 from customers and be forced into the unwanted role of ‘vaccination police.’