You may want to rethink nasal irrigation or taking a dip in a warm lake! A rare disease known as primary amebic meningoencephalitis (PAM) is caused by the free-living ameba Naelgleria fowleri. The ameba is also known as the “brain-eating ameba” and the resulting infection is almost always fatal. According to the CDC, swimming in warm freshwater areas such as rivers, lakes, and ponds is a primary source of infection, but regular participants in sinus irrigation with contaminated tap water are also at risk. Please follow the link to view a video regarding the infection and/or for more detailed information.
All information and the photo shown were obtained from Medscape.