Genus : Isosporalcystisopora
- Isosporalcystisopora contain many species that parasitize wide range of host.
- Species of isospora in mammals have been re-classified as cytisospora based on absence of stieda bodies in their sporocysts.
- Life cycle differs from Eimeria in three aspects:
- First, sporulated oocyst contain two sporocysts each with four sporozoites.
- Secondly, extra-intestinal stages occurring in spleen, liver and lymph nodes, as found in pig, may re-invade intestinal mucosa and cause clinical signs.
- Thirdly, rodents may become infected after ingestion of oocyst from dog and cats with asexual stages and act as reservoirs.
Species of Isosporalcystisopora
|
Species |
Hosts |
Site |
|
Cystisospora Canis ( syn. Isospora canis) |
Dog |
Small intestine |
|
C. felis ( Syn. Isospora felis) |
Cat |
Small intestine |
|
C. ohioensis ( Syn. I. ohioensis) |
Dog |
Small intestine |
|
C. burrowsi ( Syn. I. burrowsi) |
Dog |
Small intestine |
|
C. rivolta (Syn. I. rivolta) |
Cat |
Small intestine |
|
C. suis( Syn. I. suis) |
Pig |
Small intestine |
|
C. orlovi |
Camel |
Unknown |
|
C. belli |
Human |
Small intestine |
|
C. aectopitheci |
Primates |
Small intestine |
|
C. callimica |
Primates |
Small intestine |
|
C. papionis |
Primates |
Small intestine |
Note: C. canis and C. felis are most common species of isospora found in dog and cat respectively.