Well. This thread is basically my bat signal....

Easiest answer is yes, we are still detecting anti bodies in donors from infections early on.

Most blood centers are doing at least 1 qualitative test for antibodies, and are migrating to doing 2 tests by adding a quantitative (titer) test by 12/1 due to fda requirements for convalescent plasma.

I was sick in late July and tested positive on the qualitative test last week and had a titer of 2.44 which is low but still significant nearly 5 months lost infection

I know of another donor who still test positive since he was sick in March, but I'm not privy to his titer level..

Go give blood and find out if you are positive. Worst case you save 3 lives, best case you are positive and can now donate convalescent plasma.

We are in discussions to decide if we can/should report the titer test results.

Our docs are always very conservative when it comes to new tests and the reporting of results. Main reason is they want more data that the test is meeting the reliability standards before putting our name behind the final results. Second reason is that they don't want the public to make inferences or use the tests in any diagnostic form from the results (long term immunity, etc) until there is more data/information from the medical community.

Happy to help anytime with questions

ETA: forgot to mention. You can actually self schedule and donate convalescent plasma and still find out if you are positive for antibodies as we test every donation.

If you are in the dfw area: just follow this link to book an appointment

https://www.carterbloodcare.org/plasma-donations-for-treating-covid-19/