It first appeared in Kenya in 1931 and then in some African countries. In 1993 death toll had risen to about 600 besides tens of thousands of animals. Therefore, the disease is originally from Africa and is communicated by mosquitoes which carry the disease to animals and to humans as well. As for disease symptoms, he said The patient feels fever, headache, and pain in limbs and muscles. He does not see properly.
Some patients throw up and suffer from diarrhea.
Red spots are seen on the skin of the patient as a result of bleeding. Central nerve system may also be affected. The patient may suffer from paresis and lose sight completely. For protection, he said Sheep died of this disease should be burnt as disease can be transferred to other creatures. Mosquitoes should also be fought by spraying swamps with insecticide.