New research suggests another serious neurological condition can be added to the list of those connected to Zika virus infection. According to a small study, the mosquito-borne illness could cause an autoimmune condition known as acute disseminated encephalomyelitis (ADEM), which shares some traits with multiple sclerosis. The researchers will present their findings this week at the American Academy of Neurology’s 68th Annual Meeting in Vancouver, British Columbia.

The small study involved six patients admitted to the emergency room and neurology outpatient department at Hospital da Restauração in Pernambuco, Brazil. Each had fever and rash, symptoms common in people stricken by the Zika virus and other mosquito-borne illnesses. Some patients in the study also developed severe itching, muscle and joint pain and red eyes, which are also symptoms of a Zika infection. All six patients tested positive for the Zika virus. The doctors ruled out other mosquito-borne viruses, including dengue and chikungunya. FULL REPORT