_:b57580943 "T058" . _:b57580942 "0.84"^^ . _:b57580944 . _:b57580945 . _:b57580942 _:b57580944 . _:b57580943 "C0019700" . _:b57580942 . _:b57580942 . _:b57580945 "seroprevalence" . _:b57580944 _:b57580945 . _:b57580942 _:b57580943 . _:b57580942 .