Labcorp test 164090 is a Roche quantitative ECLIA spike antibody test that can check for COVID antibodies from infection or vaccination with 100% Specificity. My high deductible insurance covered it in full. Anything above 0.7 is considered positive.
I had COVID (undiagnosed, with symptoms but with no loss of smell/taste) in February 2020. In January 2021 I got this test and my numbers were 192.6. I got vaccinated in March, but didn't retest afterward.
My father had the test done before his vaccine and was 0. He got tested again 2 weeks after his 2nd Pfizer shot. At the time the top number of the test was 250 and he tested greater than 250.
My 10 year old Rafi had COVID (diagnosed, with symptoms but with no loss of smell/taste) in November 2020. In July 2021 he got tested and his numbers were 478.4. Apparently the upper range of the test has gone up.
Post your own DPs if you took this titer.
The upper range on this test has been increased to 2,500 and the cost for an Rx has gone down to $6 if you don't have one from a Dr.
I took a titer yesterday, 7 months after my 2nd Moderna shot and 21 months after having COVID and my numbers are now greater than 2,500:
DW took it 7 months after her 2nd Moderna shot and was 1,156. She tested negative for antibodies before she vaccinated.
Given that neither of us are immunocompromised and we're in our 30s, we're not planning on getting a booster in the near future.