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A family of sporozoan coccidia; important genera are Eimeria and Isospora, infections by Eimeria being by far the most common and most serious in domesticated animals.
References in periodicals archive ?
Within Eimeriid Coccidia, a clear distinction exists between the tissue cyst-forming Coccidia, exemplified by Toxoplasma gondii and various Sarcocystis species comprising the Family Sarcocystidae, and the monoxenous coccidia, exemplified by the Family Eimeriidae (Lindsay and Blagburn,1994; Tenter et al.
The traditional classification systems based on phenotypic characteristics of Isospora place them in the Family Eimeriidae, but this placement is not supported by 18S rDNA data (Lindsay et al.
The slowly evolving and highly conserved 18S rDNA gene is specially suited for studies of the phylogeny of Isospora species, due to considerable variability along this gene between members of the Eimeriidae (Morrison et al.
Based on taxonomic position, biology, and morphology, a set of Coccidia species was selected to cover the biodiversity of Sarcocystidae and Eimeriidae, and Cryptosporidium parvum was used as an outgroup.
There were no cases suggesting that Isospora of the Siberian tiger, or any other member of mammalian Isospora, are more closely related to members of the family Eimeriidae.
Although there is general agreement on the placement of those coccidia into the suborder Eimeriina, their classification into the families Sarcocystidae and Eimeriidae has not generally been accepted (Tenter et al.