East Coast fever is a serious disease that affects cattle, primarily in East Africa. It is caused by a parasite called Theileria parva, which is transmitted through the bite of infected ticks. The disease can lead to high fever, swollen lymph nodes, and, in severe cases, death. Farmers often face significant economic losses due to East Coast fever, as it can reduce milk production and lead to the death of livestock. Vaccination and effective tick control measures are essential for managing the disease and protecting cattle herds in affected regions.