it is a rare but serious disease people living in areas where Eastern equin and sephtis virus circulates should protect themselves by preventing mosquito bites Eastern equine and sephtis symptoms diagnosis and treatment Eastern equine and sephtis virus can lead to fever or neurological issues like menitis or en sephtis if you suspect you or someone close to you has this illness consult your healthcare provider currently there is no specific Treatment available for Eastern equin and fitis managing symptoms with rest fluids and pain relievers may help alleviate discomfort most people with Eastern equine en sephtis virus are asymptomatic but symptoms can develop 4 to 10 days after a mosquito bite ranging from fever to severe neurologic diseases neurologic symptoms may appear quickly in infants or after illness in older individuals about onethird may die within 2 to 10 days and survivors might face long-term disabilities