Fig. 3.

Haptoglobin (HP) and serum amyloid A (SAA) concentrations in serum and different categories of Cryptosporidium oocyst counts in faecal samples. White = negative (no oocysts found), blue = low (below median oocysts per gram (OPG)), black = high (more than median OPG found in a faecal sample). The number of calves in each group is marked above each bar. Results from the 3 months of age were not presented because only one calf had a Cryptosporidium positive faecal sample. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)