Microbiology A patient presents with headache, high fever and meningismus. Within 3 days he becomes unconscious. Most probable causative agent ? A Naegleria fowleri B Acanthamoeba castellani C Entamoeba histolytica D Trypanosoma cruzi 💡 Explanation A patient presents with headache, high fever and meningismus. Within 3 days he becomes unconscious. Most probable causative agent ? ✓ Correct Answer: A. Naegleria fowleri