Encephalitis is a type of brain inflammation caused by a viral infection. It is characterized by flu-like symptoms such as headache, dizziness, and joint pain and is also known as 'brain fever' or 'chamki bukhar.' Encephalitis can be caused by a variety of viruses. It's useful to divide potential causes into three categories: common viruses, childhood viruses, and arboviruses. Herpes simplex is the most common virus that causes encephalitis in developed countries. The herpes virus typically enters the body through a nerve and causes a cold sore. However, in rare cases, the virus enters the brain. This type of encephalitis typically affects the temporal lobe, which controls memory and speech. It can also affect the frontal lobe, which regulates emotions and behavior. Herpes encephalitis is dangerous and can result in severe brain damage and death.
