Ebola symptoms usually start suddenly with fever, severe headache, muscle pain and extreme tiredness, and they can appear 2 to 21 days after exposure to the virus. Because these early signs look like malaria, typhoid and flu, many people do not realize they could be seriously ill. This guide explains the symptoms of Ebola virus disease, how they change from the first days to the later stages, how to tell Ebola from similar illnesses, and exactly when to seek help.
If you are new to the topic, start with our guide on what is Ebola before reading on.
Key facts about Ebola symptoms
- Symptoms appear 2 to 21 days after exposure, most often within 8 to 10 days.
- The early symptoms of Ebola are fever, severe headache, muscle and joint pain, weakness and sore throat.
- Vomiting, diarrhea, stomach pain and rash follow as the illness progresses.
- Unexplained bleeding or bruising happens in some patients, but many people with Ebola never bleed.
- A person is not contagious until symptoms start, and becomes more infectious as the illness gets worse.
- Only a laboratory test can confirm Ebola, so anyone with symptoms and a possible exposure should get medical help early.
What are the first signs of Ebola?
The sign of Ebola virus infection that people notice first is usually a sudden fever. The early Ebola virus symptoms often include:
- Sudden fever and chills
- Severe headache
- Muscle and joint pain
- Extreme tiredness and weakness
- Sore throat
- Loss of appetite
These common symptoms of Ebola can be mistaken for many everyday infections. That is the main reason Ebola is dangerous in its early days: people may stay at home, travel or care for others without knowing the risk. What separates a routine fever from a possible Ebola case is exposure, which means contact with a sick person, an infected body or infected animals, or travel from an outbreak area in the past 21 days.
Ebola symptoms by stage
Early stage (days 1 to 3 of illness)
The illness begins abruptly. The patient feels feverish, weak and achy, with a headache and sometimes a sore throat. At this point many people feel they have a bad flu or malaria.
Progressive stage (days 3 to 7)
- As the virus spreads in the body, more severe symptoms appear:
- Vomiting and watery diarrhea
- Stomach pain
- Rash
- Red or irritated eyes
- Hiccups
- Chest pain, cough or difficulty swallowing in some patients
Vomiting and diarrhea can cause serious dehydration, which is one of the main reasons patients become critically ill.
Severe stage
Without early supportive care, the illness can become life-threatening. Signs of severe Ebola disease include:
- Unexplained bleeding or bruising, for example from the gums, nose, eyes or in vomit and stool
- Confusion or extreme drowsiness
- Rapid breathing and low blood pressure
- Signs of kidney and liver problems
- Shock and organ failure
Bleeding is the symptom most people associate with Ebola, but it appears in only some patients and usually late. Most deaths are linked to dehydration, shock and organ failure, which is why quick treatment improves survival.
The Ebola incubation period
The Ebola incubation period is the time between exposure to the virus and the first symptoms. It ranges from 2 to 21 days, and most patients become ill after 8 to 10 days.
This is why health authorities monitor people who had contact with a confirmed case for 21 days, checking their temperature and symptoms daily. If no symptoms appear during that time, the person is no longer considered at risk.
Important points about the incubation period:
- A person without symptoms cannot spread Ebola, even if they were exposed.
- Contagiousness starts when symptoms begin and rises as the illness progresses.
- A person who has died of Ebola remains highly infectious.
Ebola symptoms vs malaria, typhoid and flu
The symptoms of Ebola infection overlap with several common illnesses, especially in regions where malaria and typhoid are widespread. Many viruses cause fever and headache, and many viruses cause a sore throat, so the symptoms alone cannot tell you what you have.
- Malaria: fever, chills, headache and body aches. It is common and treatable. Ebola patients are often tested for malaria at the same time.
- Typhoid fever: sustained fever, stomach pain, weakness and sometimes diarrhea. It is caused by bacteria and treated with antibiotics.
- Influenza and other viral infections: fever, sore throat, cough and aches. These usually come with more cold-like symptoms such as a runny nose and cough.
- Cholera and other causes of severe diarrhea: profuse watery diarrhea and vomiting, often with fast dehydration.
- Marburg virus disease: the Marburg virus symptoms are very similar to Ebola, as both viruses belong to the same family, and lab testing is needed to tell them apart.
- Lassa fever and other viral hemorrhagic fevers: fever, weakness and sometimes bleeding.
The key question is not only "what are my symptoms?" but "have I been exposed?" A fever with possible exposure to Ebola in the past 21 days needs urgent medical attention, whatever the other symptoms are.
Ebola symptoms in children and pregnant women
- Children can have the same symptoms as adults, such as fever, weakness, vomiting and diarrhea. Young children can become dehydrated quickly, so early care is important.
- Pregnant women with Ebola face a high risk of severe illness and pregnancy complications, including miscarriage, and need urgent specialist care.
Long-term symptoms after Ebola recovery
Survivors can recover fully, but some have symptoms that last for months, sometimes called post-Ebola syndrome. These can include:
- Joint and muscle pain
- Persistent tiredness
- Headaches
- Vision problems and eye inflammation
- Hearing problems
- Anxiety, difficulty sleeping or low mood
Survivors need follow-up care and community support, and they should not face stigma. The virus can remain in some body fluids, such as semen, for months after recovery, so survivors are given guidance on safe practices.
When to seek medical help
Contact a health facility or your national health hotline immediately if you have a fever, severe headache, vomiting, diarrhoea or unexplained bleeding and any of the following in the last 21 days:
- Contact with someone who has or may have Ebola
- Contact with the body of a person who died of a suspected Ebola infection
- Travel to or from an area with an Ebola outbreak
- Contact with bats, primates or bushmeat in an outbreak area
- Work in a health facility caring for patients with fever
What to do:
- Call ahead so staff can prepare and protect themselves. Do not just walk into a clinic.
- Avoid public transport and contact with other people.
- Do not self-medicate or visit traditional healers.
- Do not handle or care for others without proper protection, and keep family members away from your body fluids.
- Follow official instructions from health workers.
Early treatment saves lives. Patients who get fluids and supportive care early, and antibody treatment where it is approved, have a much better chance of survival.
How are Ebola symptoms treated?
There is no single treatment for all symptoms, so care focuses on supporting the body:
- Fluids and electrolytes to treat dehydration
- Oxygen and blood pressure support when needed
- Treatment of fever, pain and other infections
- Monoclonal antibody treatments (Inmazeb and Ebanga), which are approved for Zaire ebolavirus infection
Early care changes the outcome. Read more in our guide to Ebola vaccine and treatment.
How can you reduce your risk?
Knowing the symptoms helps you act early, but preventing infection is better. Wash your hands often, avoid contact with the body fluids of sick people, do not touch the bodies of people who died of suspected Ebola, avoid bushmeat in outbreak areas, and follow safe burial guidance. See our guide to Ebola prevention for practical steps.
Frequently asked questions about Ebola symptoms
What are the first symptoms of Ebola?
The first symptoms are usually sudden fever, severe headache, muscle pain, extreme tiredness and sore throat.
How soon do Ebola symptoms appear?
Symptoms appear 2 to 21 days after exposure, most commonly after 8 to 10 days.
Do all Ebola patients bleed?
No. Bleeding or bruising happens in some patients, usually in the later stages. Many people with Ebola never bleed.
Can you have Ebola without a fever?
Fever is a very common early sign, but symptoms vary. Anyone with a possible exposure and other symptoms such as vomiting, diarrhea or severe weakness should seek medical advice.
Can you spread Ebola before you have symptoms?
No. A person is not contagious until symptoms begin.
How do I know if it is Ebola or malaria?
You cannot tell from symptoms alone, because the early signs are very similar. A laboratory test is the only way to confirm Ebola, and exposure history matters.
What are the symptoms of Ebola in humans in the final stage?
In severe cases, patients may have bleeding, confusion, rapid breathing, low blood pressure, and kidney and liver problems that lead to shock and organ failure.
What should I do if I think I have Ebola symptoms?
Call your health facility or national hotline right away, avoid contact with others, do not travel, and follow the instructions of health workers.
Are Ebola and Marburg symptoms the same?
They are very similar, as both cause fever, severe headache, muscle pain, vomiting and sometimes bleeding. Lab tests tell them apart.
Conclusion
Ebola symptoms begin like many common illnesses, with fever, headache, muscle pain and weakness, but they can quickly become severe. The most important signals are the combination of symptoms and recent exposure within the past 21 days. If both apply, act immediately: call ahead, isolate yourself, and get tested. Early care greatly improves the chance of survival and helps stop the virus from spreading to others.
This article is for general information and does not replace advice from a qualified health professional. If you think you have been exposed to Ebola, contact your health facility or national health hotline immediately. Last medically reviewed