Jordan Fabian and Josh Wingrove

Government, Business, Logistics

Snow, Ice May Stall Vaccine Shipments

Cars parked for several days in Chicago Feb. 16, 2021 are covered in cumulative snow. Cars parked for several days in Chicago Feb. 16, 2021 are covered in cumulative snow. A storm dumped up to 18 inches in the greater Chicago area. (Charles Rex Arbogast/Associated Press)

The U.S. vaccine supply is increasing to 13.5 million doses per week, up from 11 million, but harsh winter weather may slow the pace temporarily.

February 16, 2021