Ebola Symptoms

Early symptoms of Ebola virus disease are nonspecific which includes

  • Fever
  • Headache (severe)
  • Weakness (Fatigue)
  • Chills
  • Vomiting
  • Diarrhea
  • Stomach discomfort or pain in the abdomen
  • Decreased appetite
  • Joint and muscle discomfort.

Patients may develop other symptoms as the disease advance

  • Rash or red spots on the skin
  • Eye redness
  • Hiccups
  • Sore throat
  • Cough and/or coughing up blood
  • Vomiting up blood
  • Chest pain
  • Mental confusion
  • Severe weight loss
  • Bleeding both inside and outside the body (for example, mucosal surfaces, eyes)
  • Difficulty swallowing and breathing
  • Symptoms of impaired kidney and liver function
  • In some cases, both internal and external bleeding (for example, oozing from the gums, or blood in the stools)
  • Laboratory findings include low white blood cell and platelet counts and elevated liver enzymes.


Incubation period for the Ebola virus (EVD)

The incubation period is the time interval from infection with the virus to onset of symptoms, is from 2 to 21 days. A person infected with Ebola cannot spread the disease until they develop symptoms. 

It is unclear why some patients can survive and others die from this disease, but patients who die usually have a poor immune response to the virus. Patients who survive have symptoms that can be severe for a week or two; recovery is often slow (weeks to months) and some survivors have chronic problems such as fatigue and eye problems


EVD is a rare but severe and often deadly disease. Recovery from EVD depends on good supportive clinical care and the patient’s immune response. Studies show that survivors of Ebola virus infection have antibodies (molecules that are made by the immune system to label invading pathogens for destruction) that can be detected in the blood up to 10 years after recovery.


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