The term encephalitis lethargica is identified in base64 scheme by the sequence ZW5jZXBoYWxpdGlzIGxldGhhcmdpY2E=, while the MD5 signature is equal to 43eba9bc775f957a8f5f40a181df94d5. The ASCII encoding of encephalitis lethargica in hexadecimal notation is 656e63657068616c69746973206c657468617267696361.