Subject outline In this course we will concentrate on 3 major groups of parasites 1. Medical protozoa -flagellates, amoebae, malarial organisms 2. Medical Helminthes- parasitic worms such as the flukes tapeworms and roundworms 3. Medical Arthropods-insects and arachnids that are ectoparasites and carriers(vectors)of diseases
Subject outline In this course we will concentrate on 3 major groups of parasites: 1. Medical protozoa - flagellates, amoebae, malarial organisms 2. Medical Helminthes - parasitic worms such as the flukes, tapeworms, and roundworms 3. Medical Arthropods - insects and arachnids that are ectoparasites and carriers (vectors) of diseases
Why do we study parasitology 1. Parasites provide unique examples of biological phenomena not found in free living organisms 2. ● Medical importance Veterinary importance Economic importance
Why do we study parasitology? 1. Parasites provide unique examples of biological phenomena not found in freeliving organisms 2. _ • Medical importance • Veterinary importance • Economic importance
Medical Importance of Parasites Humans are hosts to over 100 species of parasites. Many of these parasites are causative agents of major public health problems of the world
Medical Importance of Parasites • Humans are hosts to over 100 species of parasites. • Many of these parasites are causative agents of major public health problems of the world
Medical Importance of Parasites Ten major tropical diseases (UNdp/World bank/TDR, 2000) Malaria(疟疾) Shistosomaiasis(血吸虫病) Filariasis(丝虫病, Lymphatic filariasis and Onchocerciasis) Leishmaniasis(利什曼病) Trypanosomiasis(锥虫病, African trypanosomiasis and chagas disease) Leprosy(麻风病) Tuberculosis(结核病) Dengue fever(登革热)
⚫ Ten major tropical diseases (UNDP/World bank/TDR, 2000) • Malaria(疟疾) • Shistosomaiasis（血吸虫病） • Filariasis (丝虫病，Lymphatic filariasis and Onchocerciasis) • Leishmaniasis（利什曼病） • Trypanosomiasis (锥虫病，African trypanosomiasis and chagas disease ) • Leprosy（麻风病） • Tuberculosis （结核病） • Dengue fever （登革热） Medical Importance of Parasites
Major human parasites Estimated World Prevalence of the major Parasitic Infection of human Malaria 300-500 milion Schistosomiasis 200 million Lymphatic filariasis 120 million Onchocerciasis 85 million Leishmaniasis 12 milion Trypanosoma cruzi(South America) 18 million Ascaris infection 1300 million Hookworm infection 1300 milion Amoebiasis 60 million Trichuriasis 900 million Giardiasis 200 million wHo,1999
Major human parasites • Estimated World Prevalence of the Major Parasitic Infection of Human: – Malaria 300-500 million – Schistosomiasis 200 million – Lymphatic filariasis 120 million – Onchocerciasis 85 million – Leishmaniasis 12 million – Trypanosoma cruzi (South America) 18 million – Ascaris infection 1300 million – Hookworm infection 1300 million – Amoebiasis 60 million – Trichuriasis 900 million – Gardiasis 200 million (WHO,1999)