Hepatozoon

Hepatozoon is a genus of Apicomplexan protozoa, causing a tick-borne disease called hepatozoonosis in animals. There are over 300 species in this genus.

Life cycle
Hepatozoonosis results when an animal eats an infected tick -- the disease is not spread by tick bites. Species include H. muris and H. canis, which typically infects mice and dogs, respectively.