While recent heavy rains associated with the passing of Tropical Storm Helene led to warnings about potentially contaminated floodwater in Grand Cayman, it turns out a bacteria that is “abundant in the environment” could pose a more serious health hazard.
At least one case of Mycobacterium marinum has been confirmed, and although the condition is considered rare, the Health Services Authority has indicated that persons with cuts and scrapes should be careful to avoid getting wounds wet in dirty or contaminated water sources.
HSA microbiologist Dr. Glendee Reynolds explained in an email to the Compass that there are over 150 different Mycobacterial species and some of them can result in infections.
“They are relatively rare in terms of causing these infections but are abundant in the environment, including watery environments and, as such, scratches, cuts and nicks acquired in these environments can allow for entry of the organism into the skin … and result in localized infection and even abscess formation.”
Reynolds noted that these infections can be difficult to treat as many of the different strains are multi-drug resistant. To help prevent infection, Reynolds recommends, “Good general hygiene post-environmental excursions and good wound care even after the smallest scratch, especially when interacting with particularly dirty or possibly contaminated water sources.”
Another HSA microbiologist, Dr. Camille Blake, added that “it is important to seek early medical care for any wound that is rapidly getting worse or is taking a longer than usual to heal, especially if that person is immunocompromised”.
An HSA spokesperson made it clear, however, that these infections are not specific to the Cayman Islands. “Mycobacteria are naturally occurring and can be found in a wide range of environments globally. These bacteria, along with others, are present in many natural settings locally as well, including water bodies.
“It’s important to note that exposure to these environmental organisms does not always result in infection, as this depends on various factors such as wound care and an individual’s immune system.”
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