The Ebola virus is a highly contagious and often deadly virus that causes Ebola virus disease (EVD) in humans and other primates. It belongs to the family Filoviridae, which includes several other viruses that cause hemorrhagic fever. Ebola virus was first identified in 1976 during outbreaks in Sudan and the Democratic Republic of Congo (formerly Zaire).
One of the earliest symptoms of Ebola is the sudden onset of fever, often accompanied by chills or sweating.
Severe headaches are common, often described as intense and persistent.
Individuals with EVD often experience muscle pain, joint pain, and general body weakness.
Profound weakness and fatigue are common symptoms as the disease progresses.
Some patients may experience a sore throat, accompanied by difficulty swallowing.
Nausea and vomiting are common symptoms of EVD, which can lead to dehydration and electrolyte imbalances.
Severe, watery diarrhea is another hallmark symptom of Ebola infection, often accompanied by abdominal pain.
A maculopapular rash may develop, typically occurring five to seven days after the onset of symptoms.
In severe cases, Ebola can cause internal bleeding, as well as bleeding from the gums, nose, or other mucous membranes.
Ebola can lead to organ failure, with impaired kidney and liver function being common in severe cases.