Coronavirus: Vaccine chief ‘optimistic’ about over-50s May target   The UK can meet the target of vaccinating all over-50s by May, the chairman of the vaccines taskforce has said, adding he is “very optimistic”. Dr Clive Dix told the BBC the taskforce has met every target set. The UK would be “ahead of the game” … تابع قراءة Coronavirus: Vaccine chief ‘optimistic’ about over-50s May target