Did it a couple of months ago - It showed I appeared to have long term antibodies (I was sick in March 20 for over 3 weeks). Was then invited to participate in another Imperial / Genomics Uk study, REACT-GE, which is looking at "why some people who are infected with coronavirus (COVID-19) experience no symptoms or are only mildly affected, while others have much more severe symptoms. The results may help identify new treatments or vaccines." Went at the end of last month involved providing blood and urine samples, being weighed and measured, Blood pressure, grip test and some sort of lung function test.