Question

encephalitis occurs when
reason please​

Answer 1

Answer:

The most common cause is a viral infection. The brain becomes inflamed as a result of the body’s attempt to fight off the virus. Encephalitis occurs in 1 in every 1,000 cases of measles. Encephalitis generally begins with fever and headache.

Answer 2

Answer:

Most diagnosed cases of encephalitis in the United States are caused by herpes simplex virus types 1 and 2, arboviruses (such as West Nile Virus), which are transmitted from infected animals to humans through the bite of an infected tick, mosquito, or other blood-sucking insect, or enteroviruses.

Explanation:

In many cases, the cause of autoimmune encephalitis is unknown. But experts say it can be caused by: Exposure to certain bacteria and viruses, including streptococcus and herpes simplex virus. A type of tumor called a teratoma, generally in the ovaries, that causes the immune system to produce specific antibodies.