欧洲疾控中心：隐孢子虫病2020年流行病学年度报告（英文版）

Cryptosporidiosis is an acute diarrhoeal disease caused by an intracellular protozoan parasite Cryptosporidium. It infects a variety of animals (e.g. humans, cattle, sheep, rodents, cats and dogs), but also birds, fish and reptiles. Most human cases are due to two species: Cryptosporidium hominis, which mainly infects humans, and the zoonotic species Cryptosporidium parvum, which also infects domestic animals, in particular young calves and lambs. The infection can be asymptomatic or can caus