The recommendation is to stay at home for 7-days from the onset of the symptoms of a high temperature and/ or a new continuous cough. They should self-isolate for the full 7-days, not just until the initial symptoms clear-up.
The NHS will not run a COVD-19 test based on symptoms alone.
This advice also applies to children, especially those at nursery age. The children need to be kept away from schools or nurseries if they show symptoms.
We would strongly encourage people to read the full guidance, at source, as it explains further about the need for isolation and gives practical help in how to do it.
Public Health England Guidance: Stay at home: guidance for people with confirmed or possible coronavirus (COVID-19) infection – Published 12 March 2020