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Deadly flesh-eating bug that thrives in heatwaves threatens UK beaches

Health experts are warning the deadly Vibrio bug is already lurking in UK and European coastal waters as it thrives in heatwavewarmed seas and raises infection risks

[3D rendered Illustration of a anatomically correct convergence to a vibrio cholerae bacterium causing the famous cholera disease - stock illustration]

3D rendered Illustration of a anatomically correct convergence to a vibrio cholerae bacterium causing the famous cholera disease - stock illustration

A deadly flesheating bug is threatening beaches in the UK and across Europe, health experts have warned, as scorching summer heatwaves push sea temperatures higher than ever.

The culprit is Vibrio - a group of bacteria that lives naturally in warm or brackish water, where freshwater and seawater mix. Most of the time, Vibrio sits quietly in low numbers during colder months.

But when temperatures ramp up, it can multiply fast - and one strain in particular has sparked alarm. Researchers say the emergence of Vibrio vulnificus, often dubbed the flesheating bacterium, along UK and European coastlines is being driven by extreme summer heatwaves and rising sea temperatures.

[Deadly fresh-eating bug that thrives in heatwaves threatens UK beaches]

Deadly fresh-eating bug that thrives in heatwaves threatens UK beaches(Image: ECDC)

Experts point to climate change as the key factor, with a huge heat dome trapping hot air over Europe and helping to push marine temperatures to record highs. Once water temperatures climb above 15C, Vibrio can thrive.

They especially like shallow, still water with low salinity, such as inlets and coastal areas where rivers flow into the sea, Dunmow Broadcast reported. Specialists say the bacterium is already present in UK waters, with the risk peaking between May and October, particularly during heatwaves.

Joint research by the University of Exeter and the University of Portsmouth has already linked rising sea temperatures to a surge of Vibrio species around Britain. Public health mapping tracked by the European Centre for Disease Prevention and Control (ECDC) suggests the highestrisk zones are estuaries, marshy coastal areas and brackishwater sites along the North Sea.

[Coastal areas across Europe and the UK could face higher levels of Vibrio vulnificus bacteria this summer]

Coastal areas across Europe and the UK could face higher levels of Vibrio vulnificus bacteria this summer(Image: ECDC)

No single beach is permanently banned, but any spot near a river mouth, estuary or enclosed bay with warm, shallow water can become highrisk when temperatures soar, Euronews reported. Most Vibrio infections cause vomiting and diarrhoea.

But Vibrio vulnificus can be far more dangerous. If it gets into an open cut, scrape or fresh tattoo, it can trigger necrotising fasciitis, where tissue rapidly dies.

Sometimes, this requires emergency surgery or even amputation. It can also cause sepsis, and bloodstream infections are fatal in roughly 1 in 5 cases, sometimes within one to two days, The Resident reported.

[Health experts advise: cover wounds with waterproof dressings]

Health experts advise: cover wounds with waterproof dressings(Image: ECDC)

Health experts advise: cover wounds with waterproof dressings, wash thoroughly with soap and clean water after sea contact, and avoid raw or undercooked shellfish, especially oysters, from warm waters.

The European Centre for Disease Prevention and Control named eight countries facing the highest risk in early July:

1. Bulgaria
2. Estonia
3. France
4. Germany
5. Lithuania
6. Poland
7. Romania
8. Sweden

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