Background: Ebola virus disease (EVD) is a viral fever that can cause internal bleeding. The death rate from EVD is very high. In a 2014 outbreak in West Africa, 28,000 were affected and 11,000 died. EVD may also affect the brain and nervous system, but this is not well studied. People with EVD report headaches and mental status changes. Some rarely had strokes and seizures. Neurological issues can continue for years after people recover from the initial EVD infection. Objective: This is a natural history study to learn more about how EVD continues to affect survivors brain and nervous system after 5 years. Eligibility: People aged 18 years or older who participated in the PREVAIL III Neurology Substudy. Participants can be either an EVD survivor or a close contact. Close contacts are people who had a relationship with a survivor of EVD. Design: Participants will have 1 clinic visit. They will have a physical exam. Their vital signs will be measured. They will also have a neurological checkup. The exam will assess their mental status. Their senses, reflexes, and coordination will be tested. They will be observed while walking to assess their gait. This exam will take about 1 hour. Participants will have an interview. They will answer questions about any symptoms they have that may be affecting the brain or nervous system. This will take about 1 hour. No other procedures will be performed during this visit.
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Neurological Sequelae
Timeframe: 5 years post initial enrollment in PREVAIL III