Updated 8:32 a.m. ET, January 4, 2021
- The first patient has received the Oxford University/AstraZeneca vaccine, in what the UK health secretary called a "real pivotal moment."
- The US has administered more than 4.2 million vaccine doses, but is lagging behind some other countries as hospitalizations continue to surge following the holidays.
- India is embarking on one of the world's most ambitious mass immunization programs, after regulators approved two vaccines for restricted emergency use.
- Countries around the world have implemented restrictions and travel bans for the UK to contain a new Covid-19 variant first reported in England.