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  • RSV Vaccine - Arexvy

1. What is Respiratory Syncytial Virus (RSV)?

RSV is a common virus that causes infections of the respiratory tract, particularly in older adults, young children, and people with weakened immune systems. While RSV often leads to mild cold-like symptoms, it can result in serious complications like pneumonia and bronchiolitis, particularly in individuals aged 60 and above.

2. How does Arexvy help?

Arexvy is designed to protect against RSV by prompting the immune system to develop specific antibodies that combat the virus. This helps reduce the risk of severe illness and hospitalisation, particularly during the RSV season, which typically runs from autumn to early spring.

3. Why is Arexvy important for older adults?

As people age, the immune system becomes less efficient at responding to infections. Older adults, especially those with chronic heart or lung conditions, are at greater risk of serious RSV-related complications, including hospitalisation and death. Arexvy provides an important layer of protection for this vulnerable group.

4. What should I discuss with my healthcare provider before receiving Arexvy?

Before receiving the Arexvy vaccine, inform your healthcare provider if you:

  • Have any allergies, particularly to any vaccine ingredients.
  • Have a weakened immune system or are undergoing treatments that suppress the immune system.
  • Are feeling unwell with a fever on the day of your scheduled vaccination.
  • Have had a previous severe reaction to any vaccine.

5. How can I report side effects or concerns?

If you experience any side effects from Arexvy, it’s important to report them to your healthcare provider. In the UK, you can also report side effects via the Yellow Card Scheme, which helps monitor the safety of vaccines and medicines.

6. Where can I learn more about RSV and vaccination?

For more information about RSV, vaccines like Arexvy, and general immunisation guidelines, refer to trusted resources such as:

  • NHS Website: www.nhs.uk for detailed advice and vaccination services.
  • Green Book on Immunisation: The Green Book is the UK’s authoritative guide on vaccines and immunisation. It provides in-depth clinical information for healthcare professionals but is also a valuable resource for patients seeking more detailed information.

Consult your healthcare provider for any further questions or clarification regarding your eligibility, the vaccination process, and aftercare.

What is Arexvy?

Arexvy is a vaccine used to protect against respiratory syncytial virus (RSV) in adults aged 60 and over. RSV can cause severe respiratory illnesses, particularly in older adults and those with pre-existing health conditions.

Arexvy is recommended for adults aged 60 years and older. In the UK, eligibility may be determined based on risk factors, such as chronic respiratory, cardiovascular, or immunosuppressive conditions, following guidance from healthcare professionals.

Arexvy stimulates the immune system to produce antibodies that fight against RSV. This helps prevent serious illness by reducing the chances of developing severe respiratory complications.

Arexvy is given as a single injection, typically into the upper arm (deltoid muscle). Depending on individual health circumstances and recommendations from health authorities, a booster dose may be required in the future.

Most people experience mild side effects, including:

  • Pain, redness, or swelling at the injection site
  • Fatigue or tiredness
  • Muscle pain
  • Headache
  • Fever These side effects usually resolve within a few days.


Serious side effects from Arexvy are rare, but like all vaccines, it may cause allergic reactions. Symptoms of an allergic reaction include difficulty breathing, swelling of the face or throat, or hives. Seek medical attention immediately if you experience any severe reactions.

You should not receive Arexvy if you:

  • Have a history of severe allergic reaction (anaphylaxis) to any of the ingredients in the vaccine.
  • Are experiencing an acute illness with a high fever. The vaccination can be postponed until recovery.


Yes, Arexvy can be administered alongside other vaccines, including the flu and pneumococcal vaccines, as long as they are given in different injection sites. It is recommended to consult with a healthcare provider for personalised advice on co-administration.

Currently, Arexvy is recommended as a single dose for RSV prevention in adults aged 60 and over. However, future booster doses may be recommended, depending on evolving guidelines from health authorities like the NHS and information from studies.

Clinical studies have shown that Arexvy is highly effective in reducing the risk of severe RSV infection in older adults. Its effectiveness is especially pronounced in individuals with underlying health conditions that increase the risk of complications from RSV.

Availability of Arexvy on the NHS may vary depending on local guidelines and individual risk factors. Your GP or healthcare provider can offer guidance on whether you qualify for the vaccine and how to access it.

The duration of protection is still being studied, but current data suggest that it provides significant immunity for at least one RSV season. Booster doses may be recommended based on evolving guidance from health authorities.

For more detailed guidance on Arexvy, consult your GP or refer to the NHS website and the "Green Book," which offers comprehensive information on vaccines and immunisation in the UK.

Always consult with your healthcare provider to ensure the vaccine is suitable for your individual health circumstances.

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