Latest updates: Trump has passed a $900bn aid bill to support the US economy; diseases expert says herd immunity through the vaccine won’t be achieved in the UK until summer
It is likely to be summertime before herd immunity is reached through a coronavirus vaccine programme in the UK, respiratory disease expert Professor Calum Semple has said.
Semple said between 70 and 80% of the population needed to be vaccinated before herd immunity could be achieved.
Donald Trump has signed a $900bn coronavirus relief package to help the US economy recover from the pandemic, after threatening to reject the bill last week.
The aid package was agreed by Democrats and Republicans in Congress late last Sunday, after months of negotiations. But Trump unexpectedly demanded that the package, which had already been passed by the House and Senate and was believed to have Trump’s support, be revised to include larger relief checks and scaled-back spending on foreign aid.
Related: Donald Trump signs Covid-19 relief and spending bill
Related: New museums and Smokey Bear: what’s in the $900bn US stimulus package?
