Published on: 7/23/2025
What is the brain-eating amoeba?
The brain-eating amoeba, known as Naegleria fowleri, is a tiny organism found in warm freshwater that can cause a serious brain infection.
Explanation
Naegleria fowleri is often called the brain-eating amoeba. It is a tiny organism that lives in warm freshwater like lakes and hot springs. When people swim or dive in these waters, the amoeba can enter the body through the nose.
Once inside, it travels to the brain, where it can cause a rare but severe infection called Primary Amoebic Meningoencephalitis (PAM). This infection can lead to brain swelling and is often fatal.
Key Points:
- Source of Infection: The amoeba is usually found in warm freshwater bodies.
- Mode of Entry: It enters the body through the nose.
- Health Impact: It causes a serious brain infection called PAM.
Preventing infection involves avoiding activities in warm freshwater when the amoeba might be present, especially during hot weather. It's important to be aware of this organism if you enjoy swimming in natural water bodies.
(References)
- Jahangeer M, Mahmood Z, Munir N, Waraich UE, Tahir IM, Akram M, et al. (2020). Naegleria fowleri: Sources of infection, pathophysiology, .... Clinical and experimental pharmacology & physiology, 31612525.
- Alanazi A, Younas S, Ejaz H, Alruwaili M, Alruwaili Y, Mazhari BBZ, et al. (2025). Advancing the understanding of Naegleria fowleri: Global .... Journal of infection and public health, 39913985.
- Güémez A, & García E. (2021). Primary Amoebic Meningoencephalitis by Naegleria fowleri. Biomolecules, 34572533.
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