Class Sporozoa, also known as Apicomplexa, Contiene per le vacuoles and Haemospororida, consists of a diverse group of parasitic protozoans. These organisms have complex life cycles and are typically transmitted through a vector such as a mosquito. The Class Sporozoa has more than 5,000 species, including the notorious Plasmodium falciparum, causing malaria in humans. Other notable species are Toxoplasma gondii and Cryptosporidium parvum, which cause serious health problems in animals and humans alike. Although the Class Sporozoa has many synonyms, it remains a crucial group of organisms that require vigilant monitoring and treatment to maintain the health of affected populations.