Chapter 6 contents Malaria Human African trypanosomiasis (sleeping sickness) American trypanosomiasis (Chagas disease) Leishmaniases Intestinal protozoan infections (parasitic diarrhoea) Flukes Schistosomiases Cestodes Nematode infections Filariasis Onchocerciasis (river blindness) Loiasis. Lymphatic filariasis (LF)