a rare chronic progressive encephalitis caused by the measles virus and occurring primarily in children and young adults; death usually occurs within three years; characterized by primary measles infection before the age of two years
especially the thighs and wrists and fingers myositis characterized by weakness of limb muscles ; sometimes involves swallowing muscles; onset after 50 and slowly progressive; seen more often in men than in women
a rare chronic progressive encephalitis caused by the measles virus and occurring primarily in children and young adults; death usually occurs within three years; characterized by primary measles infection before the age of two years