The new 'stay alert' coronavirus messaging has been ruthlessly mocked online, with Brits coming up with their own satirical versions.

'Stay at home, protect the NHS and save lives' - used since the beginning of the outbreak in the UK - has been ditched and replaced with 'stay alert, control the virus, and save lives'.

Boris Johnson is expected to unveil it tonight at 7pm when he addresses the nation and sets out the 'roadmap' for how the UK will leave the lockdown he imposed on March 23.

It was first unveiled last night and since been criticized as vague and unclear.

Brits have been quick to mock the new slogan

And Brits have decided to react making memes to mock the new guidance and creating their own versions of the new slogan.

In one posted by Olaf Falafel, the slogan is replaced by 'have affair, no don't inject bleach, ok just a little'.

This is a reference to President Donald Trump's already infamous suggestion people could drink or inject bleach to treat the virus.

And Scarfolk Council posted one saying 'sneak up, shout at the virus, then run.'

Hundreds of Twitter users have been chiming in with their own version

Much of the humour has been aimed at the idea of 'staying alert' to a virus that is undetectable to the human eye.

Dylan Patel posted a tweet critical of how the government has handled the coronavirus pandemic, saying 'be vague, cover our backs, shirk responsibility.'

Twitter user Dame Agnes Guano posted a Father Ted inspired offering that had Ted Crilly holding a placard saying 'down with this sort of thing'

The confusion has been so overwhelming the PM has already been forced to clarify the new advice, before his national address this evening.

Leaders of all the devolved nations have rejected Boris Johnson's new "stay alert" advice in favour of keeping the "stay at home" message in the fight against coronavirus amid criticism that the new slogan is unclear.

The Prime Minister was dropping his stricter message as he prepared to unveil his plans to ease the lockdown in a broadcast to the nation on Sunday evening.

He is now telling the public to "stay at home as much as possible", keep two metres apart when going out and "limit contact" with other people.

But the Government's efforts to maintain a unified UK-wide response to the pandemic seemed to be in jeopardy as the devolved administrations rejected his message.

The leaders of Scotland, Wales and Northern Ireland said they had not been consulted over the "stay alert, control the virus and save lives" slogan.

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Opposition politicians and a scientist advising the Government criticised the new message and Scottish First Minister Nicola Sturgeon said the first she had heard of "the PM's new slogan" was in newspaper reports.

"It is of course for him to decide what's most appropriate for England, but given the critical point we are at in tackling the virus, #StayHomeSaveLives remains my clear message to Scotland at this stage," she tweeted.