Читать книгу Large Animal Neurology - Joe Mayhew - Страница 91

Encysted protozoal forms may be associated with little cellular reaction. With dividing forms such as Sarcocystis sp. merozoites, there is often severe necrosis with hemorrhage and inflammation comprised of lymphocytes and macrophages, sometimes neutrophils, eosinophils, and multinucleated giant cells. Amoeba usually only invades the CNS following massive exposure via portals such as the olfactory turbinates. These agents also take advantage of immunocompromised states.