_:b56865730 _:b56865732 . _:b56865730 . _:b56865730 _:b56865731 . _:b56865731 "T058" . _:b56865732 . _:b56865731 "C0019700" . _:b56865732 _:b56865733 . _:b56865730 . _:b56865733 "seroprevalence" . _:b56865730 "0.84"^^ . _:b56865730 . _:b56865733 .