RE: Mass antibody testing to be rolled out22 Aug 2021 21:51
Just for info, from the BBC reports today I believe this antibody study is an alternative version of the one being carried out by Biobank, which I took part in recently. In my case, the trigger for the first of the two antibody tests was a recent second vaccination. I was sent an Abingdon AbC-19 lateral flow test (The one the Government didn't pay them for!). The sample was from a pinprick of blood. I had a positive response, which I reported online. This meant I had antibodies from the vaccine.
Some time later I was invited to undertake another self-administered test. This was to show whether I had a different kind of antibody, which would indicate if I had been infected with Covid some time in the past. This was a different test kit entirely, not a lateral flow cassette. It involve a pinprick again, and the massaging of the finger to squeeze a couple of ml of blood into a tube. This sample was returned tin an envelope, and the result was emailed to me a few days later. This time it was negative.
The study described by the BBC said the first test was was to look for antibodies from a previous vaccination. The second test was for antibodies from the infection indicated by the positive PCR test. I reckon the tests kits will be the same two as those sent to me.
Incidentally, my wife had a negative result to the AbC-19 test, and she wasn't sent the second test as a consequence. The negative result isn't uncommon, but apparently the T cell response can be more important for immunity than antibodies.