I have examined several brains from people dying of Naegleria infection. On removing the brain from the cranial cavity the frontal parts of the hemispheres liquify and pour out dripping onto the autopsy table. In the Midwest all these cases came from swimming in farm ponds without any live water. Another organism that can do this is Mucor., a fungus causing mucormycosis, usually in diabetics. Both effectively lobotomize the patient.
