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.
Encephalitis is inflammation of the brain tissue. It's most often caused by viral infections. In some cases, bacterial infections can also cause encephalitis.
Symptoms of encephalitis can include: 1  Confusion. 2  A fever. 3  A headache (which can be very painful). 4  A stiff neck and back.  Light hurting your 1  eyes. Nausea and vomiting.  Lack of 1  energy. Drowsiness.