Naegleria fowleri is also known as the "brain-eating amoeba." The term "brain-eating amoeba" has also been applied to Balamuthia mandrillaris , causing some confusion between the two; Balamuthia mandrillaris is unrelated to Naegleria fowleri , however, and causes a different disease called granulomatous amoebic encephalitis . Unlike naegleriasis, which is usually seen in people with normal immune function, granulomatous amoebic encephalitis is usually seen in people with poor immune function, such as those with HIV/AIDS or leukemia . 
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