Hantavirus

Also called Hantavirus infection

Hantavirus is a rare infection caught from infected rodents, such as rats and mice. People usually catch it by breathing in dust contaminated with rodent urine, droppings or saliva, for example when cleaning sheds or barns. Depending on the type, it can affect the kidneys or the lungs.

Last updated Nov 9, 2026

What it is

Symptoms usually start 1 to 8 weeks after contact. In Europe, it most often affects the kidneys.

There is no specific cure, but hospital care can support the kidneys and lungs. Avoiding rodent contact and wetting dusty areas before cleaning reduce the risk.

Common signs

  • High temperature and chills
  • Headache and aching muscles
  • Tummy or back pain
  • Peeing less than usual
  • Shortness of breath with the lung type

How it is usually diagnosed

  • Blood tests
  • Kidney function and urine tests

Records worth keeping

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

  • Blood and urine test results
  • Kidney function results
  • Hospital discharge letters

Questions to ask your doctor

  • Could my kidneys be affected long-term?
  • How did I catch it?
  • How can I avoid it in future?

When to get help right away

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

  • Difficulty breathing, or peeing much less than usual after possible contact with rodents: call 112

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.

Sources