What is the approximate mortality rate for amebic meningitis?

• A. About 10%
• B. About 5%
• C. About 50%
• D. Over 97%

Answer: (D)

Amebic meningitis caused by Naegleria fowleri has an exceptionally poor outcome. The infection progresses rapidly in the brain, and diagnosis is often made late, leaving little time for effective intervention. Historically, the mortality rate is about 97% or higher, with only a very small number of survivors even with aggressive therapy. That makes the estimate “over 97%” the correct choice. The other options are far too low for this disease, which is known for its grim prognosis. In rare cases, early recognition and aggressive treatment can save lives, but the typical course remains almost universally fatal.