The risk from flesh-eating bacteria at beaches and in rivers is becoming a serious concern this summer, as reported cases rise into the teens and fatalities increase.
Vibrio vulnificus, the bacteria in question, damages skin tissues until they decay and turn black, leading to a severe condition known as necrotizing fasciitis. This often necessitates extensive surgery to either remove dead tissue or even amputate a limb to save a patient’s life.
This bacteria is usually found in the Gulf Coast waters, but it has been gradually moving north and has now been reported in North Carolina, where health authorities note 59 infections and one death since the beginning of the year.
Florida presents a grim picture as well, with 16 cases and five deaths reported this year alone. Moreover, Louisiana has recorded 17 cases, four of which resulted in death.
While these deadly bacteria thrive in coastal and brackish waters, they can infect swimmers via open wounds or can be ingested when consuming raw or undercooked seafood, especially oysters.
Experts highlight that the Vibrio vulnificus can lead to severe stomach issues as well as dangerous wound infections. In the worst-case scenarios, it could lead to severe blood infections, which can be fatal.
The rising incidence of these bacteria is believed by experts to be linked to warmer waters. They thrive in temperatures between 68 and 95 degrees Fahrenheit (20 to 35 degrees Celsius).
With worldwide temperatures increasing, these optimal conditions for the bacteria are becoming more common, allowing them to spread northward and linger longer along coasts.
Additionally, worsening storms and flooding are mixing this bacteria into freshwater sources, heightening the risk for both swimmers and seafood enthusiasts.
This year’s count in Florida falls behind the average annual figures, which typically include about 48 cases and 11 deaths. However, Louisiana’s rates have surged past their historical averages. Normally, seven cases and one death are reported annually—this year, they’re seeing 17 cases and four deaths. All of these patients have required hospitalization, according to reports from the Louisiana Department of Health.
In Texas, the average for Vibrio cases was about 33 annually from 2015 to 2019, with yearly cases fluctuating between 22 and 36. A notable case was in 2019 when Adam Perez, after a brief dip in Corpus Christi’s Waters Edge Park, had to undergo multiple surgeries due to severe tissue loss in his leg.
This is indeed a concerning bacteria. Dr. Alok Patel, a pediatrician at Stanford Children’s Health, pointed out how rare it is but emphasized its potential lethality.
Vibrio’s mortality rate hovers around 20 percent overall, but increases to at least 30 percent for individuals with compromised immune systems. In severe cases leading to sepsis or necrotizing fasciitis, mortality rates can skyrocket up to 70 percent.
About 80 percent of infections arise from seawater exposure, while 20 percent result from the consumption of raw seafood. Each year, the CDC reports roughly 150 to 200 infections, but numbers suggest they are on the rise.
An extensive review of CDC data from 1988 to 2018 indicates that Vibrio wound infections along the East Coast have seen an eightfold increase, jumping from around 10 to over 80 cases annually.
Rachel Noble, a microbiologist studying at UNC-Chapel Hill’s Institute of Marine Sciences, noted that every water sample collected along the North Carolina coast now contains some form of Vibrio, a stark contrast to two decades ago.
Even when infections aren’t fatal, they can lead to lasting complications. The bacteria can swiftly invade a wound, releasing harmful toxins that damage tissue and blood vessels.
Once they penetrate deeper layers of skin and muscle, the infection can escalate quickly, resulting in blisters and open wounds. If left untreated, it can cause sepsis, a severe and life-threatening condition that affects the organs.
Immediate medical intervention is crucial, which may involve intravenous antibiotics, emergency surgeries to excise dead tissue, or even amputation as a last resort.
