COVID-19 | The first shipments of Covid-19 vaccine left on trucks and planes early on Sunday, kicking off a historic effort to stop a surging pandemic that is claiming more than 2,400 lives a day in the United States.

Mask-wearing workers at a Pfizer Inc factory in Michigan began packing the first shipments of the vaccine developed with German partner BioNTech SE in dry ice shortly after 6:30am on Sunday.

Trucks carrying pallets of boxed, refrigerated vaccine began rolling away...