
T-cell immunity exists six months after COVID-19 infection, study finds
People still have a detectable immune response six months after being infected with COVID-19, according to the first study of its kind.The UK study found that people who had previously developed COVID-19 had raised levels of T-cells, an important back-up to antibodies in fighting infections. But the researchers, from Public Health England and the UK Coronavirus Immunity Consortium, warn that it's still not clear whether the T-cell levels were high enough to protect against re-infection.Live coronavirus updates from the UK and around the world Image: T-cells are an important back-up to antibodies in fighting infections Professor Paul Moss of the University of Birmingham, who led the Consortium, said the findings were "encouraging", but...