Coronavirus patients can’t infect others after 11 days of being ill even if their test still comes back positive, scientists find.
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.
They looked at whether the bug could be passed from them to someone else, the New York Post reported.
Positive tests in patients that still had symptoms after two weeks could be picking up sections of the bug that cannot pass the virus on to someone else.