This list includes many of the common large shrubs of Canada, as well as the trees.any of the trees on this list are introduced as ornamentals or for food and are not common in Canada.
Human African Trypanosomiasis (HAT), also called African sleeping sickness, is a parasitic disease that is transmitted by infected tsetse flies. HAT can occur as a chronic or acute infection depending on the sub-species of parasite responsible for the infection.
What causes African sleeping sickness? There are 2 types of the disease. They are named for the areas of Africa where they are found. West African sleeping sickness is caused by the parasite Trypanosoma brucei gambiense. This long-term (chronic) infection can last for years. East African sleeping sickness is caused by Trypanosoma brucei rhodesiense. Itâs a short-term (acute) illness that may last several weeks to months. People from the U.S. who travel to Africa are rarely infected. On average, 1 U.S. citizen is infected every year. The person is typically infected in East African game parks. Who is at risk for African sleeping sickness?