Meningoencephalitis, also called encephalomeningitis, is the inflammation of the meninges and the brain. It has symptoms of both encephalitis and meningitis. It has a high rate of mortality. Causes are protozoal, viral, and bacterial pathogens.
Some specific types of meningoencephalitis are West Nile virus, granulomatous meningoencephalitis, and trypanosoma brucie.
Treatment depends on the underlying cause. Bacterial cases are treated with antibiotics. Protozoal cases respond to anti-parasitic medication. Viral cases are very difficult to treat unless the exact infection is known.