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  1. Sep 16, 2021 · Two reasons immediately come to mind; they are generally healthy so that we may get a better idea of the asymptomatic. They donate blood that can be tested for antibodies without all the rigmarole of consent and time involved in coming in getting stuck. The study involved blood donors, age 16 or greater, and specimens collected between July 2020 and May 2021. Samples were collected nationally ...

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