Brain-eating amoeba, also known as Naegleria fowleri, is a rare but deadly type of amoeba that can cause a severe brain infection called primary amebic meningoencephalitis (PAM).

This amoeba is commonly found in warm freshwater, such as lakes, rivers, and hot springs, as well as in soil and poorly maintained swimming pools. When the amoeba enters the body through the nose, it travels to the brain and causes inflammation and destruction of brain tissue, leading to symptoms such as headache, fever, nausea, vomiting, seizures, and altered mental status.

Unfortunately, PAM is often fatal, with only a few reported cases of survival. It is important to take precautions when swimming or diving in warm freshwater and to avoid getting water up your nose to prevent infection.