What you need to know
The US FDA authorized Moderna's Covid-19 vaccine for emergency use in the United States as the country reported a record number of new cases.
The US remains "on track" to allocate 20 million doses of Covid-19 vaccine to states nationwide by the end of the year, chief operating officer of Operation Warp Speed said.
Parts of Britain will go back into lockdown during Christmas after a newly identified strain of Covid-19 has proved to spread more quickly than previous strains of the virus. In response, some European countries, like the Netherlands, have banned flights from the UK.