Ten thousand tests purchased for use on Island
Information collected from antibody testing could have an effect on when the Isle of Man can reopen its borders.
Ten thousand antibody tests have been purchased and are starting to be used to help the government find out how widespread Covid-19 has been in the community.
Half of those are being used initially to test groups like healthcare workers, blood donors and those admitted to hospital.
Results show whether you've had Covid-19, but medics have stressed this doesn't mean you're immune from future infection.
Pathology Manager Steve Doyle explained what the Island can hope to learn from the test: