What is Multiple Sclerosis?

Multiple Sclerosis is a chronic disease that affects the central nervous system, including the brain, spinal cord, and optic nerves.

What is Multiple Sclerosis?

About Multiple Sclerosis:

  • It is a chronic disease that affects the central nervous system, including the brain, spinal cord, and optic nerves.
  • In MS, the immune system attacks the protective sheath (myelin) that covers nerve fibers and causes communication problems between your brain and the rest of your body.
  • Eventually, the disease can cause permanent damage or deterioration of the nerve fibers.
  • There are many possible causes of MS, including:
    • Autoimmune disorders;
    • Infectious agents, such as viruses;
    • Environmental factors;
    • Genetic factors;
  • Signs and symptoms:
    • It vary widely between patients and depend on the location and severity of nerve fiber damage in the central nevous system.
    • Some people have mild symptoms, such as blurred vision and numbness, and tingling in the limbs.
    • In severe cases, a person may experience paralysis, vision loss, and mobility problems.
    • Treatment: There’s no cure for multiple sclerosis. However, there are treatments to help speed the recovery from attacks, modify the course of the disease and manage symptoms.

What is the Epstein-Barr virus (EBV)?

  • It is one of the most common human viruses in the world.
  • It spreads through bodily fluids, especially saliva (spit).
  • Symptoms: Fatigue, fever, inflamed throat, swollen lymph nodes in the neck, enlarged spleen, swollen liver, rash.
  • EBV can cause infectious mononucleosis, also called mono, and other illnesses.
  • There is no vaccine to protect against EBV infection.

 


Q1) What is the Epstein-Barr virus (EBV)?

It is one of the most common human viruses in the world. It spreads through bodily fluids, especially saliva (spit). EBV can cause infectious mononucleosis, also called mono, and other illnesses.

Source: Research links Epstein-Barr virus with increased risk of multiple sclerosis

Latest UPSC Exam 2025 Updates

Last updated on June, 2025

UPSC Notification 2025 was released on 22nd January 2025.

UPSC Prelims Result 2025 is out now for the CSE held on 25 May 2025.

UPSC Prelims Question Paper 2025 and Unofficial Prelims Answer Key 2025  are available now.

UPSC Calendar 2026 is released on 15th May, 2025.

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UPSC Mains 2025 will be conducted on 22nd August 2025.

UPSC Prelims 2026 will be conducted on 24th May, 2026 & UPSC Mains 2026 will be conducted on 21st August 2026.

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