Final answer:
Encephalitis can be caused by viral or bacterial infections, autoimmune disorders, and in rare cases, severe allergies. Examples of viral causes include herpes simplex virus and enteroviruses. Autoimmune disorders like anti-NMDA receptor encephalitis can also lead to encephalitis.
Step-by-step explanation:
Encephalitis is inflammation of the brain that can be caused by various factors. Potential causes of encephalitis include viral or bacterial infections, autoimmune disorders, and in rare cases, severe allergies. Viral infections such as herpes simplex virus, enteroviruses, and arboviruses like West Nile virus are common causes of encephalitis.
For example, a person may develop encephalitis after getting infected with the herpes simplex virus, which can affect the brain and cause inflammation. Autoimmune disorders, such as anti-NMDA receptor encephalitis, can also lead to encephalitis as the immune system mistakenly attacks healthy brain cells.
Although severe allergies without prescription usually do not cause encephalitis, in very rare cases, an extreme allergic reaction like anaphylaxis can cause brain inflammation. However, it's important to note that these cases are very uncommon and not typical causes of encephalitis.
Learn more about Causes of encephalitis