Читать книгу Practical Guide to Diagnostic Parasitology - Lynne Shore Garcia - Страница 57

All sporozoa are arthropod borne. The genus Plasmodium includes parasites that undergo exoerythrocytic and pigment-producing erythrocytic schizogony in vertebrates and a sexual stage followed by sporogony in mosquitoes. Babesia spp. are tick borne and can cause severe disease in patients who have been splenectomized or otherwise immunologically compromised. Diagnosis may be somewhat more difficult than for the intestinal protozoa, particularly if automated blood differential systems are used; the microscopic examination of both thick and thin blood films is recommended. Note: examination of blood for these parasites is considered a STAT test request. Representatives in the genus Plasmodium include P. vivax, P. ovale, P. malariae, P. falciparum, and P. knowlesi. Organisms in the genus Babesia include B. microti, B. divergens, and additional organisms from the West Coast of the United States that are not yet classified to the species level.