As opposed to plasma, which has the platelets filtered out.
I am not a doctor, and really don't know what's customary here. I heard that using donated antibodies has had some success, was that wrong?
“Would whole blood have been better? As opposed to plasma, which has the platelets filtered out.”
that would likely be worse, way worse, because the last thing covid patients need are MORE platelets, because one of the common modes of death with covid is hypercoagulation ...