https://www.dailymail.co.uk/news/article-8353093/Coronavirus-patients-stop-infectious-11-days.html
An infected person becomes contagious around two days before symptoms show, researchers from Singapore found.
They then remain contagious for between seven and ten days after they start showing signs of the disease – which include having a high temperature and a new and continuous cough.
Covid-19 ‘could not be isolated or cultured after day 11’ of the illness, researchers said.
Scientists from Singapore’s National Center for Infectious Diseases and the Academy of Medicine examined 73 patients with coronavirus.]