At what water temperature are you most likely to be infected with n. fowleri? went swimming in vermont, got water up my nose. water temp. 72 f

Here ya go: Naegleria is a genus of protozoa. The genus was named after French zoologist Mathieu Naegler. Naegleria is a microscopic euglenozoa that can cause a very rare, but severe, infection of the brain. The euglenozoa is commonly found in warm freshwater (for example, lakes, rivers, and hot springs) and soil. Only one species, Naegleria fowleri infects humans.[1] Naegleria fowleri infects people by entering the body through the nose. This typically occurs when people go swimming or diving in warm freshwater places, like lakes and rivers. In very rare instances, Naegleria infections may also occur when contaminated water from other sources (such as inadequately chlorinated swimming pool water or heated tap water

At higher temps: N fowleri is a parasite that lives in temperatures of 30 to 45 Celsius. 30C is 86 Fahrenheit, so you are not likely to have been infected