![]() Heat waves, when air and water temperatures may be higher than usual, may also allow the amebae to thrive. These conditions provide a more favorable environment for the ameba to grow. As air temperatures rise, water temperatures in lakes and ponds also rise and water levels may be lower. Climate change may be a contributing factor. Most infections in the United States have happened in southern states, but cases have been reported in more northern states in recent years. This heat-loving ameba thrives in warm fresh water such as lakes, rivers, and hot springs. It is possible that Naegleria fowleri infections will become more common because of climate change. Will Naegleria fowleri infections become more common because of climate change? In very rare instances, Naegleria fowleri has been found in swimming pools, splash pads, surf parks, or other recreational venues that are poorly maintained or don’t have enough chlorine in them. Evidence suggests that the range of Naegleria fowleri is expanding northward, which is possibly a result of climate change and warmer temperatures. In the United States, most infections have been linked to swimming in southern states, like Florida and Texas. However, the geographical areas where Naegleria fowleri infections happen in the United States are changing. Though the risk is low, people should always assume there is a risk for infection whenever entering warm fresh water. The amebae are more likely to live in sediment at the bottom of lakes, ponds, and rivers, so people should avoid digging in, or stirring up the sediment in shallow, warm fresh water. Naegleria fowleri occurs naturally in freshwater bodies, such as lakes, rivers, and hot springs, and in soil. How common is Naegleria fowleri in the environment? Naegleria fowleri is not found in salt water, like the ocean.
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