Overview of the Parasitic Pathogens

摘要: The genetic and morphologic complexity of parasites makes them challenging targets for immunological studies. chapter focuses on major the diseases they cause. Toxoplasma infection in humans arises from consumption undercooked infected meat or through contact with feces an cat. species Plasmodium that cause disease are, decreasing order importance, falciparum, vivax, malariae, ovale. Trypanosoma brucei is endemic sub-Saharan Africa, where it transmitted between by blood-feeding tsetse flies. In humans, trematodes live either within bloodstream lungs intestine. most important cestodes infect are Taenia saginata, solium, Echinococcus spp. Impaired lymphatic drainage associated adult living lymph vessels can lead to elephantiasis, a self-explanatory condition which there severe swelling limb extremities, genitalia, breasts. considers few general characteristics immunity deserve special attention, discusses relationship disease. With global warming, also expectation previously considered be largely tropical pathogens will move north south their traditional areas endemicity formerly temperate zones. ready spread parasitic enhanced greater ease travel transportation food (a factor outbreaks foodborne Cyclospora United States).