Demyelination is found in many different diseases, the most common one being the neurological disease multiple sclerosis.  Acute demyelination refers to a condition that is similar to multiple sclerosis, and can sometimes be considered a precursor to the disease.  Acute demyelination can follow being infected with a virus, bacteria, or a parasite.  Vaccinations can also lead to a case of acute demyelination.  It can also occur spontaneously.  Symptoms typically include fever, headache, drowsiness or fatigue, and seizures.  Symptoms typically occur a few weeks after an infection, and they will get progressive worse over a couple of days.

In this type of demyelination, an MRI scan of the brain or spinal cord will show lesions, similar to that of multiple sclerosis.  However, with treatment, acute demyelination can go away in a matter of months.  It can leave some permanent disability, but other people will fully recover.  It is most commonly found …