Trypanosoma cruzi is an African human trypanosomiasis, also known as sleeping sickness, which is a vector-borne parasitic disease. Trypanosoma brucei and Trypanosoma brucei Rhodesia are the causative agents of African trypanosomiasis or African trypanosomiasis, and the vector insects are tsetse flies. Trypanosoma gambiae is found along rivers or along forests in West and Central Africa, while Trypanosoma rhodesiae is found in shrub and vegetation zones in the savannas and lakeshores of East Africa. Africantrypanosomiasis (Africansleepingsickness) has three clinical stages, the first of which is the invasion of the skin, causing varying degrees of hardness and nodules, which evolve into trypanosomatous chancre, which occurs in about one-third of patients and is often found on the exposed skin where the tsetsefly bites. The chancre occurs in about one-third of patients and is often found on the exposed skin where the tsetsefly bites and lasts for about 3 weeks. The second period is the hemolymph period, when symptoms such as periodic fever and parasitemia occur, including lethargy, swelling of lymph nodes in the back of the neck, joint pain, headache, and red rash on the trunk, and myocarditis, and jaundice due to hemolysis and liver damage. Once the brain is invaded, the disease will enter the third stage of meningoencephalitis, with headache, insomnia, movement disorders and behavioral disorders, and other symptoms including general weakness, dramatic loss of appetite and weight loss. The first stage of syphilis is also known as primary syphilis or primary sores, and the clinical damage is hard chancre and enlarged lymph nodes. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The actual fact is that you can find a lot of people who are not able to get a good deal on this. The most important thing is that it is not only a good idea to have a good time. It is a chronic disease that is caused by improper feeding or the influence of various diseases, resulting in general weakness, wasting and yellowing, and withering. It is also known as the “four major signs of paediatrics” along with measles, wind and smallpox. In the ancient times, due to the limitation of living standard, people often have uneven hunger and satiety, and do not feed their children enough, so that the spleen and stomach are deficient and chancre is caused by malnutrition, which is equivalent to the malnutrition in Western medicine. The most common cause of chancre is the loss of appetite and nutritional deficiency. The basic process of clinical manifestations of two types of trypanosomes after invasion into human body includes: the initial reaction period and hemolymph phase, and the meningitis phase of invasion into the central nervous system. Initial reaction stage: About 1 week after the patient was bitten by the tsetse fly, the local skin swells and a red spot appears in the center, which is the trypanosome chancre.