Options include a ban on households mixing in England, as a further 4,422 UK cases are confirmed.
Patients say they have missed out on face-to-face examinations and appointments.
The R number has risen to between 1.1 and 1.4 as officials warn of "far worse things to come".
The government's winter plan says staff should watch to ensure visitors maintain social distancing.
The device is already being used in some hospitals to identify Covid patients.
After six weeks in hospital, recalling every Covid-19 memory has helped one patient.
The number of under-17s seeking Covid-19 tests has doubled, the head of NHS Test and Trace tells MPs.
An eating disorder psychiatrist apologises to Amanda Bowles' family for not intervening sooner.
Empty testing centres, overstretched labs and rising demand - what is behind the UK's problems?
The pilots aim to help hospitals cope with winter pressures, including coronavirus and flu.