Covid live updates: England announces new lockdown as mutant strain spreads
British Prime Minister Boris Johnson announced a new national lockdown in England to slow down the spiral in new cases of Covid-19 on the same day the U.K. started the rollout of AstraZeneca's vaccine.
The increase in cases is likely fueled by a new and more transmissible variant of the virus that was first detected in England in November.
Map of U.S. hot spots and worldwide Covid-19 cases.
Tracking surges in states across the country this winter.
Map of travel restrictions and which states have a mask mandate.
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