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National Institutes of Health (NIH) Risk factors By Mayo Clinic Staff For most people, the risk of getting Ebola or Marburg viruses (hemorrhagic fevers) is low. The risk increases if you: Travel to Africa. You're at increased risk if you visit or work in areas where Ebola virus or Marburg virus outbreaks have occurred. Conduct animal research. People are more likely to contract the Ebola or Marburg virus if they conduct animal research with monkeys imported from Africa or the Philippines. Provide medical or personal care. Family members are often infected as they care for sick relatives. Medical personnel also can be infected if they don't use protective gear, such as surgical masks and gloves. Prepare people for burial. The bodies of people who have died of Ebola or Marburg hemorrhagic fever are still contagious. Helping prepare these bodies for burial can increase your risk of developing the disease. Signs and symptoms typically begin abruptly within five to 10 days of infection with Ebola or Marburg virus. Learn more: Ebola virus and Marburg virus Mayo Clinic was monitoring the evolving Ebola situation well before the first U.S. case was diagnosed on Sept. 30. The institution is working closely with the Centers for Disease Control and Prevention (CDC) and state health departments. Mayo Clinic is fully prepared to screen, evaluate and treat patients suspected to have Ebola. That said, at this time, there are no confirmed or suspected cases of Ebola across the institution. While Ebola continues to dominate news coverage, and there is reason for concern, you should not overreact or panic.