- Trypanosomiasis or trypanosomosis is the name of several diseases in vertebrates caused by parasitic protozoan trypanosomes of the genus Trypanosoma. In humans this includes African trypanosomiasis and Chagas disease. A number of other diseases occur in other animals.
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African trypanosomiasis, also known as African sleeping sickness or simply sleeping sickness, is an insect-borne parasitic infection of humans and other animals. It is caused by the species Trypanosoma brucei. Humans are infected by two types, Trypanosoma brucei gambiense (TbG) and Trypanosoma brucei rhodesiense (TbR).
- Signs and symptoms
- Control measures
Animal trypanosomiasis, also known as nagana and nagana pest, or sleeping sickness, is a disease of vertebrates. The disease is caused by trypanosomes of several species in the genus Trypanosoma such as Trypanosoma brucei. Trypanosoma vivax causes nagana mainly in West Africa, although it has spread to South America. The trypanosomes infect the blood of the vertebrate host, causing fever, weakness, and lethargy, which lead to weight loss and anemia; in some animals the disease is fatal unless tr
Most trypanosomes develop in tsetse flies, its biological vector, in about one to a few weeks. When an infected tsetse fly bites an animal, the parasites are transmitted through its saliva. It can also be spread by fomites such as surgical instruments, needles, and syringes. The most important vectors are thought to be horseflies and stable flies. The immune response of animals may be unable to eliminate trypanosomes completely, and the host may become an inapparent carrier. These inapparent inf
The incubation period ranges from 4 days to approximately 8 weeks. The infection leads to significant weight loss and anemia. Various symptoms are observed, including fever, oedema, adenitis, dermatitis and nervous disorders. The disease cannot be diagnosed with certainty except physically detecting parasites by blood microscopic examination or various serological reactions.
If the outbreak is detected early, the organism can be destroyed by quarantines, movement controls, and the euthanasia of infected animals. Tsetse fly populations can be reduced or eliminated by traps, insecticides, and by treating infected animals with antiparasitic drugs. The tsetse habitat can be destroyed by alteration of vegetation. Some drugs can prevent trypanosomiasis, and are called prophylactic drugs. These are very effective in protecting animals during the times they are exposed to d
Human trypanosomiasis is a cutaneous condition caused by several species of trypanosomes, with skin manifestations usually being observed in the earlier stages of the disease as evanescent erythema, erythema multiforme, and edema, especially angioedema.
From Wikipedia, the free encyclopedia (Redirected from American trypanosomiasis) Chagas disease, also known as American trypanosomiasis, is a tropical parasitic disease caused by Trypanosoma cruzi. It is spread mostly by insects known as Triatominae, or "kissing bugs".
Trypanosomiasis is the name for several diseases, caused by parasites of the genus Tryposoma : African typanosomiasis or Sleeping sickness, caused by ' Trypanosoma brucei and spread by the Tsetse fly American typanosomiasis or Chagas disease, caused by Trypanosoma cruzi and spread by various bloodsucking bugs of the subfamily Triatominae
Sleeping sickness, or African trypanosomiasis, is an infectious disease. It is caused by parasites from the species Trypanosoma brucei. People get African trypanosomiasis from the tsetse fly. Because of this, it is most common in certain areas of Africa, especially Sub-Saharan Africa, where the tsetse fly lives.
Trypanosomiasis poses a considerable constraint on livestock agricultural development in Tsetse fly infested areas of sub Saharan Africa, especially in west and central Africa. International research conducted by ILRI in Nigeria , the Democratic Republic of the Congo and Kenya has shown that the N'Dama is the most resistant breed.