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JoshTko on Feb 3, 2022 | parent | context | favorite | on: What the Omicron wave is revealing about human imm...

How would Pfizer practically measure this test if most of the test population may have been exposed before vaccination?

Animats on Feb 4, 2022 [–]

Antibody tests. It's possible to tell if you've been exposed, and to which viruses and vaccines.

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