Information on the possible interaction between vaccines and autoimmune diseases, including effectiveness and safety for people with multiple sclerosis (MS).

A study has found that, for most people with multiple sclerosis, receiving a Covid-19 vaccination does not increase your risk of having a relapse.

In autumn 2025, Covid-19 booster vaccines will be offered to people at high risk of severe disease, including immunosuppressed people which may include some people taking MS medications.

Research into a possible role of the hepatitis B vaccination in increasing risk for the onset of multiple sclerosis has been inconclusive. Find out more in this A-Z entry.

Influenza or 'flu' is a highly infectious disease that causes unpleasant symptoms, including fever, aches, sore throat, fatigue and nausea. If you have MS, catching the flu can make your MS symptoms worse. You may notice this particularly if you find that your MS symptoms get worse in the heat.

Are covid vaccines safe and effective for people with multiple sclerosis (MS)? When should I book my booster? Am I eligible for a third dose of covid vaccine?

Having multiple sclerosis shouldn't stop you from travelling or enjoying holidays. Find out more about assistance with travel costs, equipment, or accessibility.

This research, part of the UK MS Register Covid-19 study, investigated how well people with MS recover from mild to moderate Covid-19 and the factors that influence recovery.

Antibodies are proteins produced by the body's immune system when it detects harmful substances such as bacteria and viruses that might cause an infection.