Patrick Vallance

Chief scientific adviser tells MPs it is "reasonable" to assume there are currently 55,000 cases in the UK.
Our scientific advisers are playing a crucial role, and in good faith
The PM gets serious. Or as serious as he can be.
But Boris Johnson and the chief medical and scientific advisers insist the UK must not impose too many restrictions too soon.
Sir Patrick Vallance says the present travel restrictions stand, however.