Before diving in: antibiotic-resistant bacteria and infections lurking in streams

Swimming in streams and springs is popular in summer, but rain, sewage overflows, and agricultural runoff create health risks. Experts warn of antibiotic-resistant bacteria, leptospirosis, and toxic algal blooms, recommending avoiding swimming after storms and checking water conditions.

Swimming in streams and springs has become a popular summer attraction, but health and environmental experts warn of contamination dangers. Heavy rains, sewage overflows, and agricultural runoff can pollute the water with antibiotic-resistant bacteria like E. coli, and leptospirosis, which can cause organ failure and even death. Blue-green algal blooms release toxins that irritate skin and eyes and can damage the liver and nervous system. Official water tests do not provide real-time information, so experts recommend avoiding swimming days before and after storms, looking for murky water or foam, not swallowing water, and showering immediately after exiting.