Sebastian Deleon, now 22, from Weston, is one of a lucky four people to survive an infection with the amoeba – named Naegleria fowleri – out of 154 known cases in the United States.Sebastian Deleon, now 22, from Weston, is one of a lucky four people to survive an infection with the amoeba – named Naegleria fowleri – out of 154 known cases in the United States.Read MoreHealth News | Mail Online