Covid-19 can have long-lived symptoms including exhaustion, weight loss and rashes. Unless we officially recognise them, we can’t identify people who may have caught it or trace their contacts
Source:
https://www.newscientist.com/article/mg24632882-800-acknowledging-odd-coronavirus-symptoms-is-vital-to-stopping-its-spread/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home