Naegleria fowleri — Primary Amebic Meningoencephalitis (PAM) — Amebic Encephalitis

Naegleria fowleri is an ameba (single-celled living organism) that lives in soil and warm fresh water, such as lakes, rivers, and hot springs. It is commonly called the “brain-eating ameba” because it can cause a brain infection when water containing the ameba goes up the nose. Only about three people in the United States get infected each year, but these infections are usually fatal.

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