Even as the European Union began vaccine rollouts on Sunday, nations around the globe are instituting severe lockdowns and travel restrictions. Fear of the U.K. variant is a key reason.

All of London and much of southeastern England is now under strict "Tier 4" lockdown restrictions after the discovery of what appears to be a new, more transmissible variant of the coronavirus.

The U.S. added more than 1 million cases in the past week. More than 85,000 people are hospitalized. Some states may have no choice but to lock down again. Others are trying a targeted approach.

There's a curfew in Paris, and Londoners aren't allowed to invite neighbors to dinner. People are already exhausted of social distancing, but some places are introducing even more draconian measures.

Under the lockdown, nonessential retail businesses will be closed, and restaurants and bars will be takeout only. Residents are to stay within about a 3-mile radius of their homes.