Eimeria

Definition

Eimeria is a genus of unicellular eukaryotic parasites that primarily infect the intestines of various animals, causing coccidiosis. They belong to the phylum Apicomplexa and are known for their complex life cycles involving multiple stages.

5 Must Know Facts For Your Next Test

1. Eimeria species are host-specific, meaning each species typically infects only one type of host.
2. The life cycle of Eimeria includes both sexual and asexual reproduction stages.
3. Oocysts are the infectious form of Eimeria and are shed in the feces of infected hosts.
4. Coccidiosis caused by Eimeria can lead to significant economic losses in livestock industries due to decreased productivity and increased mortality.
5. Diagnosis of Eimeria infection is often done through microscopic examination of fecal samples to identify oocysts.

Review Questions

• What type of disease does Eimeria cause in its hosts?
• How are Eimeria oocysts transmitted between hosts?
• Why is understanding the life cycle of Eimeria important for controlling infections?

Related terms

Coccidiosis: A disease caused by infection with coccidian parasites such as Eimeria.

Apicomplexa: A phylum of parasitic protozoa characterized by having an apical complex structure for host cell invasion.

Oocyst:

The thick-walled, resistant stage in the life cycle of some parasites, such as Eimeria, which is shed in the feces and capable of surviving outside the host.