As it happened: US will not join global vaccine search - BBC News
A spokesman said the US did not want to be "constrained" by the "corrupt" WHO and China.
England is under pressure to reconsider quarantine rules for Greece after Scotland and Wales introduced new measures over concerns about rising coronavirus cases.

From tomorrow anyone from Scotland who travels to Greece will need to self-isolate on their return.

Welsh passengers arriving back from the island of Zakynthos will have to do the same.

Meanwhile, ministers are considering reimposing quarantine measures for those arriving in the UK from Portugal as coronavirus cases rise, sources have told the BBC.

No announcement on travel rules for Greece or for Portugal is expected today.

Travel announcements usually take place on a Thursday or Friday, Transport correspondent Tom Burridge says.

Our correspondent says the UK government's rules "has been a messy affair".

"The picture has been complicated further by the fact that the quarantine is a public health policy and so the Welsh and Scottish Governments can diverge from Westminster and classify countries differently," he says.

"Now the Welsh government is bringing in testing on arrival for passengers too.

"That's awkward for the UK government because, for months, the aviation sector has been asking ministers to give their backing to testing at airports so people who test negative wouldn't have to quarantine for the full 14 days."