long COVID UK /ˌlɒŋ ˈkəʊvɪd/US /ˌlɔŋ ˈkoʊvɪd/ noun2 •Long-term sequelae or symptoms (such as brain fog, extreme fatigue, or shortness of breath) following a COVID-19 infection, which persist after the SARS-CoV-2 virus is no longer active.In Italy this is not much discussed for now. But the long covid is here, too, of course. I think drs [doctors] will slowly come to understand it, as they see patients fail to recover properly. — 2020 •(informal) Long-term negative economic effects persisting after the COVID pandemic.[See title.] — 2021