A. If by "brain fever" you mean infectious and/or inflammatory meningitis or encephalitis, then the prognosis (which is what I think you're asking about) is fairly good, assuming the treatment is appropriate. This means that cerebrospinal fluid must be obtained via a procedure commonly known as a "spinal tap", and that fluid is then cultured for bacterial growth. If bacteria are present (meaning the disease is infectious in origin) then the appropriate antibiotics should clear the infection. If no bacteria is present, then the disease is inflammatory in nature, and steroids are used to control the clinical signs (in this case, paralysis). All of this can be quite expensive and treatment can be long and require multiple follow up visits with your vet, however many of these dogs go on to do well.
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