Most fatal amoebic encephalitis is caused by ?
Ans. is 'b' i.e., Naeglaria . Amongst the given options Naeglaria and Acanthamoeba cause amoebic encephalitis. " The prognosis of Naeglaria encephalitis is uniformaly poor, most patients die within a week."---Harrison "Acanthamoeba encephalitis follows a more indolent course."----- Harrison . So, amongst the given options Naeglaria causes most fatal amoebic encephalitis .
E.histolytica
Naeglaria
E. dispar
Acanthamoeba