Rare Flesh-Eating Bacteria Kills 8; What You Need To Know In MA

MASSACHUSETTS — Health officials are warning of a rare flesh-eating bacterium known as Vibrio vulnificus, found naturally in warm coastal waters, that has killed at least eight people along the East Coast this summer.

Two people died in Connecticut and another on Long Island after becoming infected, health officials in both states said this week. Five people have died in Florida so far this year, according ot state health officials.

Vibrio infections are commonly associated with eating raw or undercooked oysters and other seafood, but also occur when people with open wounds or cuts come in contact with seawater or brackish water where the bacteria are present, according to the U.S. Centers for Disease Control and Prevention.

According to the Massachusetts Division of Marine Fisheries, state officials installed safety measures against Vibrio parahaemolyticus — a bacteria found in oysters that increases health risks — in 2012 after two oyster-related illnesses in the state in 2011.

It continues in 2023 as the state now tracks the conditions of oyster harvests in Massachusetts and limits the post-harvest growth of Vp. in oysters, especially during the high-risk timeframe from May to October.

People infected by the Vibrio vulnificus bacteria often require intensive care or limb amputations, and about one in five die, often within a day or two of becoming ill, according to the CDC.

People at greatest risk for illness from the infection are those with weakened immune systems and the elderly. Some Vibrio vulnificus infections lead to necrotizing fasciitis, a severe infection in which the flesh around an open wound dies, inspiring the “flesh-eating bacteria” moniker. The necrotizing fasciitis can be caused by more than one type of bacteria, according to the CDC.

Signs and symptoms of Vibrio vulnificus infection can include:

  • Watery diarrhea, often accompanied by stomach cramping, nausea, vomiting, and fever.
  • For bloodstream infection: fever, chills, dangerously low blood pressure, and blistering skin lesions.
  • For wound infection, which may spread to the rest of the body: fever, redness, pain, swelling, warmth, discoloration, and discharge (leaking fluids).

The CDC suggests following these precautions:

  • Don’t eat raw or undercooked oysters or other shellfish.
  • If you have a wound (including from a recent surgery, piercing, or tattoo), stay out of saltwater or brackish water, if possible. This includes wading at the beach.
  • Cover your wound with a waterproof bandage if it could come into contact with salt water, brackish water, marine life, or raw or undercooked seafood and its juices. This contact can happen during everyday activities, such as swimming, fishing, or walking on the beach.
  • Wash wounds and cuts thoroughly with soap and water after they have contact with salt water, brackish water, marine life, raw seafood, or its juices.

Besides occurring naturally in warm coastal waters, Vibrio vulnificus infections have also been associated with hurricanes, storm surges and coastal flooding.

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