Trypanosomosis in equines is caused by [[Tropical Protozoa#Trypanosoma|trypanosome protozoans]], of which there are five pathogenic to livestock. Most common are:
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Trypanosomosis in equines is caused by [[Trypanosoma|trypanosome protozoans]], of which there are five pathogenic to livestock. Most common are:
* '''''Trypasnosoma equiperdum''''', the cause of '''dourine''', which is '''transmitted venereally'''
* '''''Trypasnosoma equiperdum''''', the cause of '''dourine''', which is '''transmitted venereally'''
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* '''''T. evansi''''' the cause of '''surra''', which is '''transmitted by several species of [[Biting Flies#Tabanidae|tabanid flies''']]
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* '''''T. evansi''''' the cause of '''surra''', which is '''transmitted by several species of [[Tabanidae|tabanid flies''']]
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As with many other domestic livestock, [[Biting Flies#Glossinidae|tsetse-transmitted]] '''''T. vivax, T. congolense''''' and '''''T. brucei''''' can also affect equines in tsetse-infested areas. ''T. vivax'' can also be transmitted mechanically by biting flies, which extends its
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As with many other domestic livestock, [[Glossinidae|tsetse-transmitted]] '''''T. vivax, T. congolense''''' and '''''T. brucei''''' can also affect equines in tsetse-infested areas. ''T. vivax'' can also be transmitted mechanically by biting flies, which extends its