Those patients all tested negative for the virus at some point after recovering, but then tested positive again, some up to 70 days later, the doctors said. So far, there have been no confirmations of newly positive patients infecting others, according to Chinese health officials. In Italy, the first European country ravaged by the pandemic, health officials noticed that coronavirus patients could test positive for the virus for about a month. As there is limited knowledge available on how infectious these patients are, doctors in Wuhan are keeping them isolated for longer. He said that some patients had high levels of antibodies, and still tested positive to nucleic acid tests.

Source: bd News24 April 22, 2020 05:15 UTC