👉 The term "lepralian" is a medical term used to describe an infection caused by the bacteria, Staphylococcus aureus. Lepra (also known as staphylococcal encephalitis) is a rare disease that affects the brain and spinal cord, causing symptoms such as severe headache, nausea, vomiting, seizures, and loss of consciousness in children. The symptoms of lepralian can vary depending on the specific strain of bacteria involved, but they often include