Between 5 and 8 months after the onset of their symptoms, the adaptive immune system of around 95% of these individuals retained a memory for the infection in at least three of its branches. “Our data suggest that the immune response is there — and it stays,” says Prof.
Alessandro Sette, who co-led the study with Prof. Shane Crotty.Stay informed with live updates on the current COVID-19 outbreak and visit our coronavirus hub for more advice on prevention and treatment.The scientists measured levels of antibodies, memory B cells, and two types of T cells, all targeted at the virus.“As far as we know, this is the largest study ever for any acute infection that has measured all four of those components of immune memory,” says Prof.