Summary of Ebola virus
Ebola virus disease is a viral hemorrhagic fever of humans and other primates caused by ebolaviruses. Ebolavirus is a filovirus that is an enveloped, single stranded, negative sense, linear RNA virus with helical capsid structure. Signs and symptoms typically start between two days and three weeks after contracting the virus with a fever, sore throat, muscular pain, and headaches. Then, vomiting, diarrhea and rash usually follow, along with decreased function of the liver and kidneys. At this time some people begin to bleed both internally and externally. Ebola can progress to disseminated intravascular coagulation, diffuse hemorrhage, and shock. The disease has a high risk of death, killing between 25 and 90 percent of those infected, with an average of about 50 percent. This is often due to low blood pressure from fluid loss, and typically follows six to sixteen days after symptoms appear.