This study was carried out to assess the potential of animals, used for teaching and research, as a source of Cryptosporidium infection for students and staff of a University in Nigeria. Faecal samples from 185 animals reared on the teaching and research farm were collected and examined for Cryptosporidium spp. antigens by the use of an enzyme-linked immunosorbent assay (ELISA). From all the samples evaluated, 35.7% (66/185) were positive for Cryptosporidium spp. antigens with an infection rate of 30.6% (15/49), 40.7% (22/54), 43.9% (18/41) and 26.8% (11/41) for cattle, sheep, goats and pigs respectively. The rate of infection was significantly higher (p
Key words: Cryptosporidium, ELISA, Nigeria, Pigs, Ruminants
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