_:b58030878 . _:b58030880 . _:b58030878 "0.84"^^ . _:b58030881 . _:b58030879 "C0019700" . _:b58030878 _:b58030880 . _:b58030881 "seroprevalence" . _:b58030878 . _:b58030880 _:b58030881 . _:b58030878 _:b58030879 . _:b58030879 "T058" . _:b58030878 .