Prevelence and public health significance of parasite oocysts and ova on the sole of shoes: A case study in Zaria, Nigeria IH Nock Department of Biiological Sciences, Ahmadu Bello University, Zaria D Tanko Abstract No Abstract. The Nigerian Journal of Parasitology Vol. 21(1) 2000: 137-142 Requires Subscription PDF Published 2006-10-26 Issue Vol. 21 No. 1 (2000) Section Articles Copyright for articles published in this journal is retained by the journal.