Wales' health minister Eluned Morgan will give an update today about the spread of the Omicron variant of Covid-19.

She will be joined at the press conference, which starts at 12.15pm, by Dr Gillian Richardson, who is Wales' deputy chief medical officer with responsibility for vaccines.

The variant has been found in England and Scotland though no cases have yet been confirmed in Wales. Go here to see the latest from Wales' leading doctor on Omicron and get a handle on 10 key things about Omicron by going here

On Monday UK Government health minister Sajid Javid told the House of Commons: "We’re learning more about this new variant all the time. But the latest indication is that it spreads very rapidly, it may impact the effectiveness of one of our major treatments for Covid-19, Ronapreve, and, as the chief medical officer [for England, Chris Whitty] said this weekend, there’s a reasonable chance that our current vaccines may be impacted."

He also announced changes to travel rules and testing on return to the UK. England is also changing its rules on face coverings. From 4am today face coverings became compulsory in shops and on public transport in England unless an individual has a medical exemption. You can read more about the new rules for England and what they mean for people in Wales by going here.

Also on Monday the First Ministers of Scotland and Wales wrote to the Prime Minister with a list of demands. Number 10 denied those requests.

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You can follow our latest Omicron updates throughout the morning and from the press conference below: