The life Cycle of E.labbeana and E.columbarum. (The Causative Agent of Coccidiosis)
	←	The oocysts complete development and become infective (sporulate) outside of the host’s body
↓		↑
The infective oocyst are ingested by a host
↓		|
The oocyst “excysts” in the small intestine, and sporozoites infect the cells lining the small intestine		Oocysts are passed in the feces of the infected host
↓		↑
The parasite reproduces asexually in the cells of the small intestine producing merozoites. The merozoites infect more intestinal cells.	→	After several generations of asexual reproduction, oocysts are produced
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Asexual reproduction (schizongony or merogony) is self-limiting and ceases after several generations. Oocysts are produced only as long as schizogony continues.