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Middle East Respiratory Syndrome (MERS)

What is MERS?

Middle East respiratory syndrome (MERS) is an illness that was first found in Saudi Arabia in 2012 and has since spread to other countries. It's caused by a type of coronavirus that can cause a moderate to severe upper respiratory illness such as the common cold. The virus is known as MERS-CoV.

Experts believe MERS may have first developed in animals, because the virus has been found in camels and bats. Some people have become ill with MERS after being around infected camels.

How is MERS spread?

Like most respiratory illnesses, MERS is spread mainly through contact with infected saliva or droplets from coughing. In general, you need to have close contact to become infected. Close contact includes living with or caring for a person who has MERS or breathing in air that an infected person breathed out.

Older adults and people who have a long-term health condition, such as lung disease, are most at risk for getting MERS and for having a severe case.

What are the symptoms?

The main symptoms are a fever, a dry cough, shortness of breath, or trouble breathing. MERS may also cause a headache, muscle aches, a sore throat, fatigue, and diarrhea. For some people the symptoms get worse quickly, so they may need to stay in the hospital.

The incubation period—the time from when a person is first exposed to MERS until symptoms appear—is usually 5 to 6 days, but it may be as long as 14 days.

How is MERS diagnosed?

Your doctor may suspect MERS if you have a fever and you either have traveled to a MERS-affected area or have in the past 14 days been around a person who has MERS.

Your doctor may order several tests to find out the cause of your symptoms. A blood sample, saliva sample, or nasal swab may be used to look for bacteria or viruses.

How is MERS treated?

Severe cases of MERS often require a hospital stay, especially if breathing problems develop. You will be placed in isolation to prevent passing the disease to others.

Treatment will focus on relieving symptoms, and it may include medicines and treatments to make it easier to breathe.

MERS can be very serious. The risk of dying from the illness depends on a person's age and health. The greatest risk is to people who are older than 65 and those who have chronic illnesses, such as diabetes or heart disease.

How can I avoid being infected with MERS?

The best way to prevent the spread of MERS is to:

  • Avoid areas where there is an outbreak.
  • Avoid contact with sick animals.
  • Avoid contact with people who may be infected.
  • Wash your hands often with soap or alcohol hand cleaners.
  • Cover your mouth when you cough or sneeze.

Latest information about MERS

The following health organizations are tracking and studying Middle East respiratory syndrome (MERS). Their websites contain the most up-to-date information, including advice for travelers.

  • World Health Organization (WHO): WHO offers information about the status of the disease around the world, including summaries of research meetings and articles about the MERS outbreaks. WHO also issues travel recommendations. You can check the WHO website at http://www.who.int/emergencies/mers-cov/en/ to find more information.
  • U.S. Centers for Disease Control and Prevention (CDC): The CDC provides information about the cause of the disease, diagnostic tests, possible treatments, and travel alerts and advisories for affected areas. The website also contains recommendations to prevent the spread of infection. You can find information at http://www.cdc.gov/coronavirus/mers/about/index.html.
  • Health Canada: Health Canada offers information on the government's response to MERS, clinical guidelines, public health and infection control recommendations, and information for travelers. You can read online at https://www.canada.ca/en/public-health/services/diseases/middle-east-respiratory-syndrome-mers.html to find more information.

Credits

ByHealthwise Staff
Primary Medical ReviewerKathleen Romito, MD - Family Medicine
Adam Husney, MD - Family Medicine
Specialist Medical ReviewerLeslie Tengelsen, PhD, DVM -

Current as ofFebruary 8, 2018


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