Which of the following statements about multiple sclerosis (MS) is false?

Which of the following statements about multiple sclerosis (MS) is false?

Which of the following statements about multiple sclerosis (MS) is false?



  1. MS is characterized by demyelination of axons along with some axon loss.
  2. It was recently proven that all cases of MS are due to persistent infection by a tropical parasite.
  3. Cases of MS vary considerably in terms of severity and progression of the illness.
  4. Symptoms of MS may include weakness, paralysis, double vision, monocular blindness, and abnormal somatic sensations.
  5. Magnetic resonance imaging can help diagnose some cases of MS.

Answer: 2