الفهرس 
Historical BackgroundOnly 14 pages are availabe for public view
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Abstract
rypanosomiasis is a large group of diseases caused by obligated
flagellate blood parasites; that infect members of every vertebrate class.
They are found in blood and / or tissues of vertebrate hosts causing
trypanosomiasis in human and animals.
Human african trypanosomiasis is caused by two subspecies of
Trypanosoma brucei: T. brucei gambiense, and T. brucei rhodesiense,
which are primarily transmitted by the bite of infected tsetse flies. While
African animal trypanosomiasis (AAT) is a group of diseases of
ruminants, camels, equines, swine and carnivores caused by different
trypanosome species, such as T. congolense, T. vivax, T. evansi and T.
brucei brucei which cause “nagana” in cattle or T. equiperdum which
causes “dura” in horses and T. evansi causes surra which infects mainly
camels, cattle, and buffalos and other wild animals. Representative strains
of T. equiperdum and T. evansi have been shown to be strains of T.
brucei.