_:b56746200 _:b56746201 . _:b56746198 "0.84"^^ . _:b56746198 . _:b56746201 "seroprevalence" . _:b56746200 . _:b56746198 _:b56746200 . _:b56746201 . _:b56746198 . _:b56746198 . _:b56746199 "T058" . _:b56746198 _:b56746199 . _:b56746199 "C0019700" .