[Cryptosporidiosis--an update].

Cryptosporidia are protozoan parasites which have emerged as important causative agents of diarrhea in man and animals. Because of their small size and their tenacity, water- and foodborne outbreaks remain to be of significance in public health. Furthermore Cryptosporidium may cause up to 5-10% of economical losses in calf rearing. This review aims to give a short update on the current state of knowledge concerning species delimitation, prevalence, disease control in animal husbandry and zoonotic potential.