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Hantavirus

Find out about hantavirus, including causes, what the symptoms are, when to get medical help, and how it’s treated.

About this information

This NHS content is written for people in England. Services, entitlements and contact routes may differ in other countries.

Hantavirus

Causes

Hantavirus

Symptoms

Hantavirus

Medical treatments

You can get hantavirus from breathing in or touching the poo, pee or saliva of infected rats, mice or voles.

Symptoms of hantavirus can include high temperature, body aches, feeling sick or being sick, diarrhoea, and shortness of breath.

If your hantavirus symptoms are severe, you may need treatment in hospital. You may be given treatments including medicines and oxygen.

How you get hantavirus

Hantavirus is usually spread by breathing in or touching the poo, pee or saliva of infected rats, mice or voles. It's rare in the UK.

You’re more likely to get hantavirus if:

  • you live or work close to rat or mouse poo and pee
  • you handle rats, mice or voles
  • you’ve been bitten by a rat, mouse or vole

It can sometimes spread from person to person, but this is rare.

Symptoms of hantavirus

Symptoms of hantavirus infection may include:

  • high temperature
  • body aches and pain
  • feeling sick or being sick
  • diarrhoea
  • tummy pain
  • headache
  • shortness of breath

See a GP if:

You may have been in contact with rats, mice or voles and you have:

  • a high temperature, or you feel hot, cold or shivery
  • body aches and pain
  • feeling sick or being sick
  • diarrhoea
  • tummy pain
  • headache

Ask for an urgent GP appointment or get help from NHS 111 if:

You may have been in contact with rats, mice or voles and you have:

  • shortness of breath

You can call 111 or get help from NHS 111 online .

Treatment for hantavirus

Hantavirus symptoms usually get better on their own. But if your symptoms are severe, you may need treatment in hospital.

In hospital, you may have:

  • medicines, such as painkillers
  • fluids through a vein
  • help to breathe using an oxygen mask or ventilator

Content supplied by the NHS website

Content supplied by the NHS website, refreshed 19 August 2026. View the original NHS article ↗

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