Ebola virus diseases (EVD) (sometimes called Ebola Hemorrhagic Fever) is the disease caused by infection with an Ebola virus. It is a type of viral hemorrhagic fever (VHF) brought on by any of several strains of viruses in the Ebolavirus genus. Ebola viruses are capable of causing severe, life-threatening disease. Many people who get EVD die from it. Workers performing tasks involving close contact with symptomatic individuals with EVD or in environments contaminated or reasonably anticipated to be contaminated with infectious body fluids are at risk of exposure. These workers may include workers in the healthcare, mortuary and death care, airline, and other travel service industries.
EVD is usually marked by fever, muscle pain, headache, and sore throat. The illness progression includes nausea, vomiting, diarrhea, and impaired organ function. In some cases, rash, internal and/or external bleeding, and death may occur.
In areas of Africa where Ebola viruses are common, suspected reservoirs include primate and bat populations. While there are no known animal reservoirs of the disease in the U.S., there is concern related to possible spread of EVD among human populations due to the availability and reach of global travel. Under certain conditions, exposure to just one viral particle can result in development of EVD. Depending on the strain and the individual infected with the disease, EVD may be fatal in 50-90 percent of cases.1
The U.S. Centers for Disease Control and Prevention (CDC) categorizes Ebola virus as a Category A select agent. This group includes high-priority agents that pose a risk to national security because they can be easily disseminated or transmitted from person to person; result in high mortality rates and have the potential for major public health impact; might cause public panic and social disruption; and require special action for public health preparedness. Because symptoms of EVD may appear consistent with many other illnesses (e.g., influenza, malaria), diagnosis and treatment of EVD could be delayed during an outbreak. Employers must protect their workers from exposure to Ebola virus on the job.
This web page provides information about Ebola viruses and EVD for workers and employers. The web page includes sections on:
Provides background information, including the origins of the Ebola virus and EVD.
Discusses exposure, incubation, symptom onset, illness, and recovery and death information as well as medical management and countermeasures.
1 "NRT Quick Reference Guide: Ebola and Marburg Hemorrhagic Fevers," U.S. National Response Team.