Apicomplexan parasites of the genus Eimeria are organisms which invade the intestinal tract, causing coccidiosis, an enteric disease of major economic importance worldwide. The disease causes high morbidity ranging from an acute, bloody enteritis with high mortality, to subclinical disease. However, the presence of intestinal lesions depends on the Eimeria species. The most important poultry Eimeria species are: E. tenella, E. necatrix, E. acervulina, E. maxima, E. brunetti, E. mitis, and E. praecox. Key points to better understanding the behavior of this species are the host-parasite interactions and its life cycle. The present paper reviews the literature available regarding the life cycle and the initial host-parasite interaction. More studies are needed to better understand these interactions in poultry Eimerias, taking into account that almost all the information available was generated from other apicomplexan parasites that generate human disease.

属的顶复寄生虫 艾美球虫是侵入肠道并引起球虫病的一种生物，球虫病是一种在世界范围内具有重要经济意义的肠道疾病。该疾病导致高发病率，从高死亡率的急性血性肠炎到亚临床疾病。但是，肠病变的存在取决于艾美球虫种类。最重要的家禽艾美球虫 种类有： E. tenella，E。necatrix，E。acervulina，E。maxima，E。brunetti，E。mitis和 大肠埃希氏菌。更好地了解该物种行为的关键是宿主-寄生虫的相互作用及其生命周期。本文回顾了有关生命周期和初始宿主-寄生虫相互作用的可用文献。需要更多的研究来更好地了解家禽中的这些相互作用艾美球虫考虑到几乎所有可用信息都是由其他会引起人类疾病的apicomplexan寄生虫产生的。