Scientists are calling for a return of a 10-day Covid-19 self-isolation period to protect the NHS from an expected winter surge.
A Lancet study has confirmed for the first time exactly how long we are infectious revealing two thirds of people who catch the virus are still contagious to some extent after five days.
Legally enforced self-isolation periods have now been scrapped and NHS guidance is currently to do so for just five days after testing positive.
