Kerala Reports Surge in Amoebic Meningoencephalitis Cases; Aggressive Testing Reveals Acanthamoeba as Major Cause
Kerala is witnessing a significant rise in Amoebic Meningoencephalitis (AME) cases, with 71 cases reported so far in 2024. While media attention often focuses on Naegleria fowleri (the 'brain-eating' amoeba), health officials clarify that nearly 99% of recent cases are caused by Acanthamoeba, a free-living amoeba widely found in water bodies and soil. Acanthamoeba primarily affects immunocompromised individuals but can also enter through skin wounds. Kerala's aggressive testing strategy, implemented after the 2023 Nipah outbreak, has led to earlier diagnosis and a reduction in mortality rates despite the surge in detected cases.
Key Points
- AME is a rare but often fatal central nervous system infection caused by free-living amoebae (FLA).
- Acanthamoeba is ubiquitous in the environment, found in swimming pools, tap water, and even dust samples.
- Early diagnosis and intensive management have helped Kerala clinicians bring down the mortality rate of this high-fatality disease.
- The state has launched a chlorination exercise for water bodies to reduce amoebic density and public health risk.
Exam Facts
- 71 cases of AME were reported in Kerala in 2024 as of September.
- Acanthamoeba accounts for nearly 99% of the recent encephalitis cases in the state.
- The mortality rate for primary amoebic meningoencephalitis (PAM) is nearly 97%.
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