The following symptoms and complaints may indicate early summer meningoencephalitis (TBE):
In approximately 70% of patients, TBE manifests with a two-phase fever course….
Early phase symptoms (like summer flu) [approximately 1-week prodromal phase (precursor phase of illness)].
- Cephalgia (headache)
- Catarrh – mild inflammation of the mucous membranes of the respiratory tract.
- Moderate fever
- Nausea (nausea)/vomiting
- Abdominal pain (abdominal pain)
- Vertigo (dizziness)
Approximately 70% of all infections are asymptomatic or the second phase of the disease is absent. In 10% of infected people develops after a symptom-free interval of about a week incoming with sudden onset of high fever (> 40 ° C):
- Meningitis (meningitis; 50% of cases).
- Meningoencephalitis (combined inflammation of the brain (encephalitis) and meninges (meningitis); 40% of cases).
- Encephalomyelitis (inflammation of the brain (encephalitis) and spinal cord (myelitis); 10% of cases).
- Myelitis (inflammation of the spinal cord).
Typical symptoms of meningitis are:
- Reduced general condition and fever
- Common symptoms:
- Cephalgia (headache)
- Occasional symptoms:
- Meningismus (neck stiffness).
- Neuritis of the cranial nerves III, V-XII
Typical symptoms of encephalitis are:
- Significantly reduced general condition and fever.
- Common symptoms:
- Quantitative disorders of consciousness (soporific/deep sleep, coma).
- Qualitative disorders of consciousness (delirium, hallucinations).
- Cognition disorders (memory disorders).
- Extremities paresis (paralysis of the extremities).
- Cranial nerve palsies (facial paralysis, hearing impairment, dysphagia, speech impairment).
- Ataxia (disturbances in the coordination of movements).
- Occasional symptoms:
- Tremor (shaking)
- Dysphagia (difficulty swallowing)
- Mimic tremor
- Epilepsy (seizures)
Typical symptoms of myelitis are:
- Reduced general condition and fever
- Common symptoms:
- Bladder disorders
- Limb paresis
- Occasional symptoms:
- Bladder spasms
- Pain in the trunk and extremities
In children and adolescents, severe disease courses occur about 10 times less frequently compared with adults.