Mainly in the second phase of the disease,
Secondary bacterial infections (purulent pneumonia with elements of emphysema or atelectasis),
Acute otitis media (H. Influenza, Str. Pneumoniae, Str. Pyogenes, S. aureus),
From CNS (epilepsy attacks, transient hemiparesis, aphasia, ataxia, blindness, deafness, decerebration stiffness, coma),
Subdural, suprameningeal haematoma,