How many cases of amoeba attacks have there been in the united states?

Amoebic infections, particularly those caused by the Naegleria fowleri species, are rare in the United States, with only about 3 to 8 cases reported annually. Since the 1960s, there have been a total of around 150 known cases, primarily linked to warm freshwater environments. While these infections are serious and often fatal, they remain extremely uncommon.