Leptospirosis, also called Weil's disease, is an infection you can get from animals. It's rare in the UK.
How you get leptospirosis
Leptospirosis is spread in the pee of infected animals – most commonly rats, mice, cows, pigs and dogs.
You can get leptospirosis if:
- soil or freshwater (such as water from a river, canal or lake) that contains infected pee gets in your mouth, eyes or a cut – usually during activities like kayaking, outdoor swimming or fishing
- you touch an infected animal's blood or flesh – usually from working with animals or animal parts
It's very rare to get leptospirosis from pets, other people or bites.
Non-urgent advice: See a GP if you might have been exposed to infected pee and you have:
- a high temperature, or you feel hot and shivery
- a headache
- been feeling sick (nausea), you're being sick, or you have diarrhoea
- aching muscles and joints
- red eyes
- loss of appetite
These are symptoms of leptospirosis.
Urgent advice: Ask for an urgent GP appointment if you have:
- yellow skin and eyes (jaundice)
- a rash
- been unable to pee
- swollen ankles, feet or hands
- chest pain
- shortness of breath
- been coughing up blood
You might have a serious form of the infection that needs to be treated quickly.
Treatment from a GP
A GP may prescribe antibiotic tablets to treat the infection. Most people recover in a few days or weeks.
It's important to finish the course of antibiotics, even if you start to feel better.
If you have a more serious form of the infection, you may need to be treated in hospital.
How to avoid getting leptospirosis
Leptospirosis is rare in the UK. You have a higher chance of getting it if you do outdoor activities like water sports (especially while abroad in tropical areas), or you work with animals or animal parts.
To reduce your chances of getting leptospirosis:
wash your hands with soap and water after handling animals or animal products
clean any wounds as soon as possible
cover any cuts and grazes with waterproof plasters
wear protective clothing if you're at risk through your job
shower as soon as possible if you've been in potentially infected water
check your dog is vaccinated against leptospirosis (there is no vaccine for people)
do not touch water or soil that may contain animal pee
do not touch dead animals with your bare hands
do not drink water from places like rivers, canals or lakes – always boil or treat it first
Page last reviewed: 17 September 2020
Next review due: 17 September 2023