<prompt> Primary amoebic meningitis caused by:Naegleri fowleriE. histolyticE. coliB. coli  <response>: Ans. is a i.e., Naegleri fowleriPathogenic free living Amoeba BAN1. Naegieria fowleri - Acute and fulminating primary amoebic meningoencephalitis PAM.2. Acanthamoeba - Ulcerative keratitis and granulomatous amoebic encephalitis GAE.3. Balamuthia Rare - Chronic granulomatous amoebic encephalitis. 