sharon davies. — monday! thank you very much indeed. sharon davies, speaking _ monday!peaking to us - monday! thank you very much indeed. sharon davies, speaking to us from i sharon davies, speaking to us from the aquatic centre. senior ministers are meeting to discuss whether to expand the scheme which allows fully vaccinated key workers in england to avoid self isolation by taking daily covid tests instead. staff working in the food supply chain, in front line emergency services, and in transport and freight are already included — and ministers could add other workers to the list, or boost the numbers for existing sectors. theo leggett reports. the test and trace system and the covid app were meant to help control the spread of the coronavirus. but for businesses and other organisations, the so—called pingdemic has become a nightmare of staff shortages. last week, the government took action to protect food supplies. it said workers at some 500 sites involved in food production and distribution would be able to avoid isolation if they got pinged, and could take daily t