A very deadly amoeba is said to have been studied by the scientists in the United States of America. The amoebas is called Naegleria Fowleri. They believe it is spreading northwards because of the change in climatic conditions and most cases are coming up in the Midwestern States. The amoeba is found living in freshwater bodies such as lakes and streams where people go for swimming. It affects the people who swim by entering through the nose and damaging the brain.