_:b57288754 . _:b57288754 "0.84"^^ . _:b57288755 "C0019700" . _:b57288756 . _:b57288757 "seroprevalence" . _:b57288754 _:b57288756 . _:b57288754 . _:b57288754 _:b57288755 . _:b57288755 "T058" . _:b57288754 . _:b57288756 _:b57288757 . _:b57288757 .