Cryptosporidium, which belongs to enteric protozoan parasites of the phylum Apicomplexa, causes cryptosporidiosis in animals and humans.The disease was characterized by diarrhea.

• 隐孢子虫属于顶复门胞内寄生机会致病性原虫，可感染人和多种动物，引起以腹泻为主要症状的隐孢子虫病，是危害全球的公共卫生问题，至今仍无有效的控制和治疗手段。