covid T cell question

I wrote to my doctor a few days ago, asking whether it would be possible to get a blood test for anti-covid T cells. I heard back today, and there doesn't seem to be:

Maybe?

It looks like you would be better off looking for a test that evaluates the T spike cells. I found two or three companies that offer it, but none are formally FDA approved. I also can't easily tell how to get it done. It is unlikely that your insurance would cover this test because it is not FDA approved.

We also don't know how many T cells would make you immune, though I could imagine you thinking "any T cells is something anyhow!"It looks like you would be better off looking for a test that evaluates the T spike cells. I found two or three companies that offer it, but none are formally FDA approved. I also can't easily tell how to get it done. It is unlikely that your insurance would cover this test because it is not FDA approved.

We also don't know how many T cells would make you immune, though I could imagine you thinking "any T cells is something anyhow!"

She included links to what she found, but I don't think this is worth pursuing further. I will continue with the non-pharmaceutical prevention, masking and ventilation and social distancing. Whether or not the CDC is premature in saying that "most healthy people" can stop masking against covid, I can't.