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What is hantavirus?
Hantavirus is a group of viruses carried mainly by rodents. People can become infected after breathing in dust contaminated with rodent urine, droppings, or saliva, or after being bitten.
In the UK, hantavirus infections in people are rare. When cases do occur, they are often linked to contact with wild rodents or to travel abroad.
How serious can it be?
Hantavirus disease can range from a mild flu-like illness to a severe, life-threatening infection. The level of seriousness depends on the specific type of hantavirus involved.
Some forms mainly cause kidney problems, while others can lead to serious lung disease. The most severe cases may require hospital treatment and intensive care.
What symptoms should you look out for?
Early symptoms often feel similar to a bad flu. They can include fever, muscle aches, headache, tiredness, nausea, vomiting, and stomach pain.
As the illness develops, symptoms can become more serious. Trouble breathing, low blood pressure, and reduced kidney function are warning signs that need urgent medical attention.
Who is most at risk?
People who clean sheds, lofts, garages, or outbuildings where rodents have been present may have a higher risk. Farmers, pest control workers, and anyone handling wild rodents are also more exposed.
Travel can matter too, especially in parts of Europe, Asia, and the Americas where hantavirus is more common. Risk increases when people are in enclosed spaces with rodent droppings or nests.
Can it be treated?
There is no specific cure for hantavirus, but supportive hospital care can make a big difference. Treatment may include oxygen, fluids, and close monitoring of breathing, blood pressure, and kidney function.
Getting medical help early is important. The sooner symptoms are assessed, the better the chance of preventing complications.
How can you reduce your risk?
Try to avoid stirring up dust in areas that may have rodent droppings. Open windows first, wear gloves, and clean with disinfectant rather than sweeping or vacuuming dry droppings.
Seal gaps in homes and outbuildings, store food securely, and keep bins closed to discourage rodents. If you have a large rodent problem, use a professional pest control service.
When should you seek help?
If you have been exposed to rodents and develop fever, muscle aches, or breathing problems, contact NHS 111 or your GP promptly. Mention the possible rodent exposure so it can be considered.
Call 999 if you have severe shortness of breath, chest pain, fainting, or confusion. These can be signs of a medical emergency.
Frequently Asked Questions
Hantavirus disease is very serious and can become life-threatening, especially if it causes hantavirus pulmonary syndrome or kidney complications.
Yes, Hantavirus can be fatal, particularly when it progresses to severe lung disease and is not treated quickly.
It can worsen rapidly after flu-like symptoms start, sometimes leading to breathing failure within days.
It can cause severe breathing problems, fluid in the lungs, shock, and organ failure, which require emergency care.
Yes, suspected Hantavirus infection should be treated as a medical emergency because severe symptoms can develop fast.
The most serious form is hantavirus pulmonary syndrome, which affects the lungs and can be deadly.
No, not every infection becomes severe, but the disease is serious enough that early symptoms should never be ignored.
Warning signs include shortness of breath, coughing, chest tightness, low blood pressure, and rapid worsening after fever and aches.
The risk of death can be significant in severe cases, especially without prompt intensive medical treatment.
There is no specific cure, but supportive hospital treatment can improve survival if started early.
Early treatment is important because severe lung or kidney problems can develop quickly and may be harder to reverse later.
People exposed to infected rodent droppings, urine, or saliva are at risk, and severe outcomes are more dangerous for those who delay care.
Yes, it often begins with mild flu-like symptoms before becoming much more serious, so early illness can be misleading.
Seek medical care right away, especially if you have been exposed to rodents and develop fever, muscle aches, or breathing problems.
Yes, severe Hantavirus infection can fill the lungs with fluid and lead to respiratory failure.
It can look like the flu at first, but Hantavirus is generally far more dangerous because it can rapidly cause life-threatening complications.
Many serious cases require hospitalization, and some need intensive care and breathing support.
Some Hantavirus species can cause hemorrhagic fever with renal syndrome, which can seriously damage the kidneys.
Most Hantavirus infections are not spread person to person, but the disease is still serious because of its severe effects on the body.
Go to the emergency room if you have rodent exposure and develop fever plus shortness of breath, chest pain, or rapidly worsening weakness.
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