If you need to define a word in your paper, the definition usually comes from a glossary in the back of a book. To properly attribute this definition you will need to cite it according to the American Psychological Association (APA) style guidelines.
Another cause of encephalitis under study is encephalitis believed to be caused by an autoantibody attack on subunits of brain N-methyl-d-aspartate (NMDA) glutamate receptors. The autoantibodies are termed anti-NMDA receptor antibodies, and the disease is termed NMDA receptor encephalitis, first identified in 2007.
Infectious agents that can cause encephalitis include bacteria, viruses, fungi, protozoans, and other parasites. Encephalitis can be caused by viruses like herpes viruses, enteroviruses, mumps, measles, and varicella viruses. Other organisms can also cause nonarboviral encephalitis.