_:b57434410 . _:b57434410 . _:b57434412 . _:b57434411 "T058" . _:b57434410 _:b57434412 . _:b57434413 . _:b57434412 _:b57434413 . _:b57434410 _:b57434411 . _:b57434410 . _:b57434411 "C0019700" . _:b57434413 "Seroprevalence" . _:b57434410 "0.84"^^ .