I had a friend send over this office email and curious why companies would be doing antibody tests rather than active virus tests.

It seems that those with no immune response to virus are more likely to contract and spread disease than those who cleared covid. With the exception of those in the narrow window who have both active virus and are in process of fighting it and building antibodies.

Am I missing something here??

I cleared COVID in June and the blood bank is still taking my antibody plasma in Dec and Jan.