Q fever
Q fever is a bacterial infection you can catch from infected farm animals such as sheep, cattle and goats. It's usually harmless but can cause serious problems in some people.
Symptoms of Q fever
Q fever doesn't always cause symptoms. Some people get flu-like symptoms within two to three weeks of being infected, such as:
- high temperature (fever)
- headaches
- aching muscles
- a cough or pneumonia
- tiredness
- night sweats
- weight loss
- joint pain
- feeling sick or vomiting
Symptoms of Q fever usually last up to two weeks. Occasionally, for few people the infection lasts longer, leading to infection of the heart valves, the liver and sometimes other organs.
How Q fever is spread
Q fever is caused by the bacteria Coxiella burnetii.
It is most often spread to humans by close contact with infected farm animals. The bacteria can be spread by contact with:
- afterbirth (placenta)
- blood
- pee
- poo
- hides, fur and wool
The bacteria in these products can be breathed in.
You can also get Q fever from drinking unpasteurised milk (milk that hasn't been heated to kill bacteria), but this is less likely.
Although Q fever is rare, people who work closely with animals are more at risk. For example farmers, vets, stablehands and abattoir workers.
When to see your GP
You should see your GP if you think you have Q fever and:
- you're pregnant – Q fever can cause miscarriage and if it spreads to your baby it can cause serious complications, especially if you catch it early in pregnancy
- your immune system is weakened, for example, if you have had an organ transplant or you are having chemotherapy – the infection may affect your eyes or brain
- you have heart valve disease – where one or more of your heart valves are diseased or damaged
Q fever is usually harmless but in rare cases, it can lead to serious problems.
Treatment from a GP
If your GP thinks you might have Q fever, they can arrange a blood test to see if you've been infected.
If you're pregnant and you test positive for Q fever, your GP can refer you for more tests to see if your baby has been infected. This is very rare.
If your symptoms are severe or they're not getting better, your GP may prescribe a one or two-week course of antibiotics.
It's important to finish the whole course of antibiotics, even if you start to feel better.
How to prevent Q fever
There is no vaccine for Q fever.
If you work with animals:
Do
- wash your hands regularly
- clean cuts or grazes immediately and cover them with a plaster or dressing
- wear protective clothing, such as waterproof gloves and goggles
- make sure all animal afterbirth (placenta) is cleaned up safely
Don't
- help animals give birth if you're pregnant
- touch anything that may have been in contact with animal blood, poo, pee or afterbirth, such as clothes, boots or gloves
- drink milk that hasn't been heated yet to kill bacteria (unpasteurised)
- eat in areas where animals are kept
Lambing season advice for pregnant women
It's especially important for pregnant women to avoid contact with sheep and lambs during the lambing season – between January and April.
Don't touch anything that might have come into contact with ewes or lambs, such as gloves or boots.
Pregnant women who catch Q fever don't usually have any symptoms, so it's better to avoid any risk.
Chronic Q fever
In a few people with Q fever, the symptoms can last for months. This is known as chronic Q fever.
Chronic Q fever sometimes leads to serious heart problems, such as endocarditis.
People with chronic Q fever may need a much longer course of antibiotics and treatment in hospital for any complications that develop.
Most people get better with antibiotic treatment. But anyone with infected heart valves may require surgery.
More useful links
The information on this page has been adapted from original content from the NHS website.
For further information see terms and conditions.