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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 20yr old patient with a recent history of swimming in fresh water developed headache, fever, vomiting, seizures.CSF examination revealed motile amoeba which is the probable causative agent?
assistant
The correct answer is  Naegleria fowleri produces primary amoebic meningoencephalitis which typically has headache with history of swimming. The ameba is commonly found in warm freshwater (e.g. lakes, rivers, and hot springs) and soil. Naegleria fowleri usually infects people when contaminated water enters the body through the nose Ref: D.R. Arora.Medical parasitology 4th ed pg. 35