A recent study from the Allen Institute and Fred Hutchinson Cancer Centre suggested that the cause of many protracted COVID cases may be an excessive inflammatory response.
India continued to report over 3,000 COVID cases for the second day in a row with 3,095 new infections in the last 24 hours, Union Ministry of Health and Family Welfare said on Friday.
Delhi recorded 11 new Covid cases in the last 24 hours, with a case positivity rate of 0.31 per cent, stated a bulletin issued by the Delhi Health Department.
Beijing is on alert after 10 middle school students tested positive for COVID-19 on Friday, in what city officials said was an initial round of testing.