Definite Case |
A. High titres of serum antibodies against measles virus and the presence of oligoclonal measles virus antibodies in CSF (Serum: CSF measles antibody ratio indicative of intrathecal antibody production). |
And/or |
B. Measles virus antigen detected in brain tissue by biopsy or at autopsy |
Suspect Case |
A. Typical clinical history: usually insidious onset of mental deterioration, followed (usually within a few months) by motor dysfunction, final progressive decerebration and untimely death |
And |
B. Typical EEG changes |