The press conference with UK Prime Minister Boris Johnson has ended, and it's fair to say there's quite a lot to take in.
Here are the key points:
* everyone in the UK is now being advised to avoid "non-essential" contact with others and "unnecessary" travel * people are also being asked to work from home "where they possibly can", and avoid pubs, clubs, theatres and social venues * people are now being advised to stay at home for 14 days if they, or anyone in their household, has either a high temperature or a "new and continuous cough" * people in at-risk groups will be asked within days to be "largely shielded from social contact" for 12 weeks * the UK is to scale up coronavirus testing in the coming weeks * from tomorrow, mass gatherings will no longer be provided with emergency workers
Mr Johnson said he recognised the government was now "asking a lot of everybody", and the UK had not seen "anything like it in peace time".
But he said "drastic action" was now needed - otherwise cases in the UK could double every five to six days.