Patrick Vallance

Boris Johnson claimed everyone will soon get a swab test with results in minutes, but experts say the plan it is not the "slam dunk" he claims.
Government could also introduce more 10pm curfews on pubs and restaurants following dramatic spike of infections in the under-30s.
The government is introducing new measures on Monday.
Leading scientist Jeremy Farrar warns the disease will "not be done by Christmas".
England's chief medical officer Chris Whitty says social distancing must "continue for a long period of time".
Chief scientist sets key challenges on lockdown lessons and on working from home.
Boris Johnson is set to announce the cash boost to stop the health service being over-whelmed this winter.
Health secretary tells Commons March 16 was "precisely when" lockdown started in a claim branded a "bare-faced lie".
Chief scientific adviser says Covid-19 will come back in "different waves over a number of years".