Weil’s disease, also known as leptospirosis, is a bacterial infection caused by a group of bacteria called Leptospira. The bacteria are typically found in the urine of infected animals, such as rats, cows, pigs, and dogs, and can enter the human body through cuts or abrasions in the skin or mucous membranes, or by ingesting contaminated water or food.
Open water swimming, especially in natural bodies of water such as lakes, rivers, and oceans, can increase the risk of exposure to Leptospira bacteria. Swimmers who swallow or inhale contaminated water, or who have open wounds or cuts, are particularly susceptible to infection.
Symptoms of Weil’s disease can include fever, headache, muscle aches, nausea, vomiting, jaundice, and kidney failure. Treatment typically involves antibiotics, and in severe cases, hospitalization and supportive care may be necessary.
To minimize the risk of contracting Weil’s disease while open water swimming, swimmers should avoid swimming in water that may be contaminated with animal urine or faeces, particularly after heavy rainfall or flooding. Swimmers should also avoid swallowing or inhaling water, and should promptly clean and cover any open wounds or cuts. There is no known cure at this point in time and every single year several people do die
It’s also a good idea to check local advisories and warnings before swimming in natural bodies of water, and to wear appropriate protective gear, such as wetsuits or neoprene gloves and booties, to reduce the risk of skin abrasions and cuts.
