What is Japanese encephalitis virus vaccine (Nakayama)?
Japanese encephalitis is a serious disease caused by a virus. It is the leading cause of viral encephalitis (inflammation of the brain) in Asia. Encephalitis is an infection of the membrane around the brain and spinal cord. This infection often causes only mild symptoms, but prolonged swelling of the brain can cause permanent brain damage or death. Japanese encephalitis virus is carried and spread by mosquitos. The Japanese encephalitis Nakayama vaccine is used to help prevent this disease in adults and children who are at least 12 months old. This vaccine works by exposing you to a small dose of the virus, which causes the body to develop immunity to the disease. This vaccine will not treat an active infection that has already developed in the body. This vaccine is recommended for people who plan to spend 30 days or longer in areas where Japanese encephalitis is known to exist, or where an epidemic has recently occurred. The vaccine should also be given to people who will spend any am
