Rising Tides, Deadly Bacteria: How Climate Change Fuels ‘Flesh-Eating’ Disease

Did you know that a deadly disease, often called ‘flesh-eating bacteria,’ is making a comeback?

Scientists are warning us that cases of infections caused by Vibrio vulnificus are on the rise, and they’re pointing to a major culprit: climate change.

This isn’t a new disease, but we’re seeing a concerning spike in numbers. Tragically, some of these infections have been fatal, with victims sometimes passing away just a day or two after falling ill. In fact, roughly 1 in 5 people who contract the bacteria die from it.

What is ‘Flesh-Eating’ Bacteria?

Vibrio vulnificus is a type of bacteria that naturally lives in warm, coastal waters. It’s most commonly found in areas where saltwater and freshwater mix, like estuaries and bays. While it’s always been around, certain conditions make it more prevalent and dangerous.

The Climate Change Connection

So, what’s causing this surge? Experts say warmer ocean temperatures are the key. As the planet warms due to climate change, our oceans are absorbing that heat, becoming warmer. This creates ideal conditions for Vibrio vulnificus to thrive and multiply.

We’ve seen recent reports of people contracting the bacteria after eating raw oysters. Oysters are filter feeders, meaning they strain water for food. If the water contains Vibrio vulnificus, the bacteria can accumulate in the oysters. When consumed raw, this can lead to severe illness.

Beyond Oysters: How Else Can You Get It?

While eating raw or undercooked seafood, especially oysters, is a common way to get infected, Vibrio vulnificus can also cause illness through wound infections. If you have an open wound, cut, or scrape, and come into contact with contaminated seawater, the bacteria can enter your body.

What Does This Mean for Us?

This rise in cases is a stark reminder of how interconnected our planet’s systems are. Warmer waters aren’t just an abstract concept; they have real-world consequences for public health.

It’s important to be aware of these risks, especially if you live in or visit coastal areas, and particularly during warmer months when water temperatures are higher.

Staying Safe

  • Be mindful of seafood: If you choose to eat raw or undercooked shellfish, be aware of the potential risks. Cooking shellfish thoroughly kills the bacteria.
  • Protect your wounds: If you have open wounds, cuts, or sores, avoid wading or swimming in warm coastal waters. If contact occurs, wash wounds thoroughly with soap and fresh water.
  • Stay informed: Pay attention to local advisories about water quality and shellfish safety.

This isn’t about fear-mongering, but about understanding the science and taking sensible precautions. As our climate continues to change, adapting our knowledge and practices is crucial for our well-being.