An example is subacute sclerosing panencephalitis, a rare brain disease characterized by diminished intellectual function and loss of nervous function.
From the en.wikipedia.org
Experimental autoimmune panencephalitis and uveoretinitis in the Lewis rat transferred by T lymphocytes specific for the S100 molecule, a calcium binding protein of astroglia.
From the nature.com
While the vast majority of patients survive measles, complications occur fairly frequently, and may include bronchitis, and panencephalitis which is potentially fatal.