New London lockdown announced in face of more virulent COVID-19 strain
UK Prime Minister Boris Johnson announced a stricter "tier 4" lockdown for London and southeast England on Saturday, citing a rapidly spreading new strain of COVID-19 detected by government scientists.
The new strain was not more dangerous, he stressed during a press briefing, but it was spreading faster, particularly in London and southeast England. The new variant may be 70% more transmissible than any strain previously detected, he said. There is no evidence a vaccine is less effective against it, he added.
The new restrictions go into effect Sunday morning. People are encouraged to stay home, and only one household indoors and two households outdoors will be allowed.
Previously, up to three households could gather from Dec. 23-27.
“We cannot continue with Christmas as planned," Johnson said Saturday.
All nonessential shops, sports facilities and gyms will also close.
The restrictions will last at least two weeks.
-ABC News' Mike Trew contributed to this report