Catalog

Powassan encephalitis

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Link to WHO Definition

Powassan encephalitis – http://id.who.int/icd/entity/1674038791

An inflammatory process of the brain, frequently with evidence of meningeal involvement, due to infection by Powassan encephalitis virus. The clinical manifestations are usually acute, with fever and variable combinations of convulsions, impaired mental state, and focal deficits. The spinal fluid may show a cellular reaction and elevated protein. Diagnosis is by neuroimaging, spinal fluid analysis and culture, PCR, and serologic tests.