TY - CHAP M1 - Book, Section TI - Parasitology: Introduction A1 - Levinson, Warren A1 - Chin-Hong, Peter A1 - Joyce, Elizabeth A. A1 - Nussbaum, Jesse A1 - Schwartz, Brian Y1 - 2022 N1 - T2 - Review of Medical Microbiology & Immunology: A Guide to Clinical Infectious Diseases, 17e AB - Parasites occur in two distinct forms: single-celled protozoa and multicellular metazoa called helminths or worms. For medical purposes, protozoa are classified according to their most important site of infection, namely, the intestinal protozoa such as Giardia, the urogenital protozoa such as Trichomonas, the blood protozoa such as Plasmodium (the cause of malaria), and tissue protozoa such as Toxoplasma. This book discusses the protozoa according to these categories. In some contexts, the protozoa are classified into four groups: Sarcodina (amebas), Sporozoa (sporozoans), Mastigophora (flagellates), and Ciliata (ciliates). SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/19 UR - accessmedicine.mhmedical.com/content.aspx?aid=1190866365 ER -