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→Clinical Signs
'''Reproductive''' – Abortion, Stillbirths, Agalactia
'''Reproductive''' – Abortion, Stillbirths, Agalactia
'''Other''' – Sudden death, [[Icterus]], Marked Pyrexia, Neurological signs, Emaciation
'''Other''' – Sudden death, [[Icterus]], Marked Pyrexia, Neurological signs, Emaciation
The clinical phase usually lasts '''2-3 weeks''', but death occasionally occurs within a week.
The clinical phase usually lasts '''2-3 weeks''', but death occasionally occurs within a week.
Sub-lethal acute disease may be followed by complete recovery or continue as chronic emaciation and decreased productivity and performance.
Sub-lethal acute disease may be followed by complete recovery or more usually continue as chronic emaciation and decreased productivity and performance.
===Corridor Disease===
===Corridor Disease===
Acute and usually fatal form of East Coast Fever that occurs when ''T. parva'' is transmitted from '''African buffalo''' to cattle. Buffalo appear to be asymptomatic carriers and replication of ''T. parva'' is restricted within domestic cattle.
Acute and usually fatal form of East Coast Fever that occurs when ''T. parva'' is transmitted from '''African buffalo''' to cattle. Buffalo appear to be asymptomatic carriers.
===January Disease===
===January Disease===
Also Known As – '''''Zimbabwe theileriosis''''' – '''''Fortuna disease'''''
Also Known As – '''''Zimbabwe theileriosis''''' – '''''Fortuna disease'''''
Acute '''strictly seasonal''' fatal form of ''T. parva'' in Zimbabwe. Occurs only from '''December to May''' due to the distribution of its vector, ''[[Rhipicephalus spp.|Rhipicephalus]] appendiculatus''.
Acute '''strictly seasonal''' fatal form of ''T. parva'' in Zimbabwe. Occurs only from '''December to May''', or more commonly January to March, due to the distribution of its vector, ''[[Rhipicephalus spp.|Rhipicephalus]] appendiculatus''.
Chronic signs such as emaciation and diarrhoea are rarely seen in Corridor disease and January disease due to the short disease course before death.
Chronic signs such as emaciation and diarrhoea are rarely seen in Corridor disease and January disease due to the short disease course before death.