[PAR] [TLE] Ian Crozier [SEP] Ian Crozier is an American physician who contracted Ebola virus disease in September 2014, while working in West Africa. [PAR] [TLE] Ebola virus disease [SEP] Ebola virus disease (EVD), also known as Ebola hemorrhagic fever (EHF) or simply Ebola, is a viral hemorrhagic fever of humans and other primates caused by ebolaviruses.  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.  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.
[PAR] [TLE] Ian Crozier [ SEP ] Ian Crozier is an American physician who contracted Ebola virus disease in September 2014 , while working in West Africa . [PAR] [TLE] Ebola virus disease [ SEP ] Ebola virus disease ( EVD ) , also known as Ebola hemorrhagic fever ( EHF ) or simply Ebola , is a viral hemorrhagic fever of humans and other primates caused by ebolaviruses . 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 . 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 .
Once Ian Crozier was infected with Ebola Virus Disease, what was his chance or survival?
Once Ian Crozier was infected with Ebola Virus Disease , what was his chance or survival ?
about 50 percent
about 50 percent