TY - CHAP M1 - Book, Section TI - Chemotherapy of Protozoal Infections: Amebiasis, Giardiasis, Trichomoniasis, Trypanosomiasis, Leishmaniasis, and Other Protozoal Infections A1 - Wetzel, Dawn M. A1 - Phillips, Margaret A. A2 - Brunton, Laurence L. A2 - Hilal-Dandan, Randa A2 - Knollmann, Björn C. PY - 2017 T2 - Goodman & Gilman's: The Pharmacological Basis of Therapeutics, 13e AB - Humans host a wide variety of protozoal parasites that can be transmitted by insect vectors, directly from other mammalian reservoirs, or from one person to another. The immune system plays a crucial role in protecting against the pathological consequences of many protozoal infections. Thus, opportunistic infections with protozoa are prominent in infants, individuals with cancer, transplant recipients, those receiving immunosuppressive drugs or extensive antibiotic therapy, and persons with advanced HIV infection. Because effective vaccines are unavailable, chemotherapy has been the only practical way to both treat infected individuals and reduce transmission. Satisfactory agents for treating important protozoal infections such as African trypanosomiasis (sleeping sickness) and chronic Chagas disease still are lacking. Many effective antiprotozoal drugs are toxic at therapeutic doses; this problem is exacerbated by increasing drug resistance. For a list of drugs and doses used to treat these diseases see Drugs for Parasitic Infections (2013). SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/16 UR - accessmedicine.mhmedical.com/content.aspx?aid=1162544051 ER -