ECHO virus
Enteric cytopathic human orphan (ECHO) viruses are a group of viruses that can lead to infections in different parts of the body, and skin rashes.
Causes
Echovirus is one of several families of viruses that affect the gastrointestinal tract. Together, these are called enteroviruses. These infections are common. In the United States, they are most common in the summer and fall. You can catch the virus if you come into contact with stool contaminated by the virus, and possibly by breathing in air particles from an infected person.
Serious infections with ECHO viruses are much less common but can be significant. For example, some cases of viral meningitis (inflammation of the tissue that surrounds the brain and spinal cord) are caused by an ECHO virus.
Symptoms
Symptoms depend on the site of the infection and may include:
- Breathing difficulty and harsh cough (croup)
Breathing difficulty and harsh cough
Croup is an infection of the upper airways that causes breathing difficulty and a barking cough. Croup is due to swelling around the vocal cords. I...
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- Skin rashes
- Sore throat
- Chest pain if the infection affects the heart muscle or sac-like covering around the heart (pericarditis)
- Severe headache, mental status changes, fever and chills, nausea and vomiting, sensitivity to light, if the infection affects the membranes covering the brain and spinal cord (meningitis)
Sensitivity to light
Photophobia is eye discomfort in bright light.
ImageRead Article Now Book Mark ArticleMeningitis
Meningitis is an infection of the membranes covering the brain and spinal cord. This covering is called the meninges.
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Exams and Tests
Because the illness is often mild and has no specific treatment, testing for echovirus is often not done.
If needed, ECHO virus can be identified from a:
- Rectal culture
- Spinal fluid culture or polymerase chain reaction (PCR) testing
Spinal fluid culture
A cerebrospinal fluid (CSF) culture is a lab test to look for bacteria, fungi, and viruses in the fluid that moves in the space around the spinal cor...
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- Throat culture
Treatment
ECHO virus infections almost always clear up on their own. No specific medicines are available to fight the virus. Immune system treatment called intravenous immunoglobulin (IVIG) may help people with severe ECHO virus infections who have a weakened immune system. Antibiotics are not effective against this virus, or any other virus.
Outlook (Prognosis)
People who have the less severe types of illness should recover completely without treatment. Infections of organs such as the heart may cause severe disease and can be deadly.
Possible Complications
Complications vary with the site and type of infection. Heart infections may be deadly, while most other types of infection improve and go away on their own.
When to Contact a Medical Professional
Contact your health care provider if you have any of the symptoms listed above.
Prevention
No specific preventive measures are available for ECHO virus infections other than hand-washing, especially when you are in contact with sick people. Currently, no vaccines are available.
Reviewed By
Jatin M. Vyas, MD, PhD, Professor in Medicine, Harvard Medical School; Associate in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital, Boston, MA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
Romero JR. Enteroviruses. In: Goldman L, Cooney KA, eds. Goldman-Cecil Medicine. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 349.
Romero JR. Introduction to the human enteroviruses and parechoviruses. In: Bennett JE, Dolin R, Blaser MJ, eds. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. 9th ed. Philadelphia, PA: Elsevier; 2020:chap 170.
