How has the reporting of Cryptosporidium parvum changed and why?
It is now known that more than one species of Cryptosporidium can cause disease in humans (C. parvum: humans and other mammals; C. hominis: humans). However, the different species cannot be differentiated on the basis of morphology. It is now recommended that the more correct reporting format would be: Cryptosporidium spp. (rather than Cryptosporidium parvum).