Protozoan parasites of the genus Cryptosporidium infect the epithelial cells of the intestinal tract of many mammals including humans and cause the gastrointestinal disease cryptosporidiosis (O’Hara and Chen, 2011). In immunocompetent individuals cryptosporidiosis is characterised by self-limiting diarrhoea, nausea, vomiting, fever and abdominal pain (Leitch and He, 2011). In immunosuppressed individuals, the infection can spread to extraintestinal, hepatobiliary, pancreatic and pulmonary regions of the body leading to chronic disease and wasting (Leitch and He, 2011).