Fever

Japanese encephalitis is caused by the Japanese encephalitis virus (JEV). It is spread by mosquito bites and is more common in areas of increased mosquito activity. It is endemic to parts of Asia and the Torres Strait region of Australia. Symptoms of encephalitis are often quite dangerous due to the potential for brain damage, severe neurological sequelae and a high mortality rate. The disease usually has a sudden onset with the first obvious symptom being a fever as high as 39-40 degrees Celsius.

Depending on the stage of the disease, each person will have different symptoms of encephalitis. Some people have a high fever, some people only have a mild fever, but there are also people with encephalitis without fever. The subjects most susceptible to encephalitis are young children because their resistance is still weak, and their immune systems are not yet complete, so they are easily attacked by viruses. Usually, the patient will have no fever in about 5 to 10 days if detected at the right time. On the contrary, if you ignore the symptoms and let them last, the disease is easy to recur, and the fever lasts or goes away on its own. The fever then returns gradually leading to chronic encephalitis. If you believe you may have Japanese encephalitis virus, seek emergency medical help.