COVID-19 vaccine

Prime minister is reluctant to speed up the lifting of lockdown.
The online booking system has opened to those aged between 56 and 59.
And more than 21 million people have now received at least one dose.
Public Health England has designated it a "variant under investigation" after 16 cases were confirmed.
An ONS survey found 41% are seeing people other than household members, care workers or members of their support bubble.
With another new variant identified, there are now nine on the UK's watchlist. Here's where things stand.
The singer donated $1million for research into the Moderna vaccine.
Other political leaders have publicised their vaccinations as a way to promote trust in the science.
The move comes as new figures show the jab is effective at reducing hospitalisation and symptomatic Covid in older people.
Health secretary Matt Hancock says the Public Health England study is "seriously encouraging".