Severe complications include pneumonia and encephalitis (inflammation of the brain), which can cause brain damage.

These severe and often fatal symptoms include meningitis, rhombencephalitis, and encephalitis.

Other complications include ear infections, bronchitis, and encephalitis.

Complications with this disease have included aseptic meningitis, encephalitis, and hemorrhagic fever, but these are rare.

They included vaccinia encephalitis, an inflammation of the brain, or eczema spread throughout the body in people who have a history of the condition.

Other complications include encephalitis - a dangerous swelling of the brain - and a viral pneumonia related to chicken pox.

Other common causes of extrapyramidal symptoms include encephalitis and meningitis.

Other serious effects that may occur in some cases include partial facial paralysis (usually temporary), ear damage, or encephalitis.

Complications of the infection are uncommon but include viral pneumonia, secondary bacterial infection and encephalitis.

The symptoms of the poisoned cats included excitability, spasms, seizures, renal failure, and encephalitis.