Middle East respiratory syndrome (MERS)

Also called MERS or MERS-CoV

Middle East respiratory syndrome (MERS) is a rare but serious lung infection caused by a coronavirus. Most cases have been in or linked to the Arabian Peninsula. It is thought to spread from camels, and can also spread between people in close contact, especially in healthcare settings. The risk for travellers is very low.

Last updated Nov 9, 2026

What it is

There is no specific treatment or vaccine. People with MERS are cared for in hospital.

Avoiding contact with camels, raw camel milk and undercooked meat, and good hand hygiene, reduce the risk.

Common signs

  • High temperature
  • Cough
  • Shortness of breath
  • Diarrhoea, sometimes

How it is usually diagnosed

  • Swab or sputum test
  • Chest X-ray

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • Travel history
  • Test results
  • Hospital discharge letters

Questions to ask your doctor

  • Is this MERS or another infection?
  • Do people I live with need testing?
  • How long am I infectious?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • Difficulty breathing after recent travel to the Middle East: call 112 and mention your travel

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

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