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J Parasitol. 1982 Dec;68(6):1117-23.

Mucosal transport of Eimeria tenella in the cecum of the chicken.

Abstract

A study of the early life history of Eimeria tenella with the electron microscope confirmed that sporozoites do not directly enter the enterocytes of the crypts, in which they develop, but are carried there by host cells. However, these cells are not macrophages, as previously thought, but intraepithelial lymphocytes. The evidence presented demonstrates that sporozoites first penetrate surface enterocytes and then enter intraepithelial lymphocytes that leave the epithelium, pass through the lamina propria and enter the crypts.

PMID:
7175614
[Indexed for MEDLINE]

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