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Seasonal Influenza Vaccine

Seasonal Influenza Vaccine

What is seasonal influenza (flu)?

Influenza (flu) is a very infectious illness caused by the flu virus. The virus infects the airways and the lungs. Flu circulates in the community during the flu season. The flu season usually starts at the beginning of October and lasts until the end of April.

Can flu cause serious illness?

Yes, the flu can cause serious illness and life-threatening complications including pneumonia, bronchitis and, on rare occasions, inflammation of the brain (encephalitis). Flu also can make chronic health problems worse.

Some people are more at risk of these serious complications including people aged 65 and older, pregnant women, and people with an underlying health condition such as diabetes and chronic lung disease.

What is the difference between a cold and the flu?

A cold usually comes on gradually with a sore throat and a blocked or runny nose and its symptoms are usually mild. Flu symptoms start suddenly with fever, muscle aches, headaches and extreme tiredness (fatigue). It may be difficult to tell the symptoms of flu apart from symptoms of COVID-19.

What is the flu vaccine?

A vaccine is a product that helps the body’s immune system (defence system) to fight against infections. Each year the flu viruses change, so each year the flu vaccine changes to provide protection from the new strains of flu virus expected.

How does the flu vaccine work?

The flu vaccine helps your immune system to produce antibodies (proteins that fight infection). If you have had the flu vaccine and you come into contact with the flu virus, the vaccine can stop you from getting sick.

Who should get the flu vaccine?

We recommend the flu vaccine for:

  • People aged 65 years and over
  • Children aged 2-17 years
  • Pregnant women-
  • People (adults and children) with long-term medical conditions such as diabetes, chronic heart conditions, liver conditions, kidney conditions and chronic lung disease including COPD, or neurological diseases
  • People with cancer
  • People whose immune system is impaired due to disease or treatment
  • People who are obese who have a body mass index (BMI) of over 40
  • People with Down syndrome
  • Residents of nursing homes and other long-stay institutions
  • Healthcare workers
  • Carers
  • People who live in the same house as someone who is at risk of flu because of a medical condition
  • People with regular close contact with poultry, water fowl or pigs.

The Flu Vaccine is FREE to everyone in these risk groups.

What flu vaccines are available this flu season?

  • the Quadrivalent Influenza Vaccine (split virion, inactivated)
  • the Fluenz Tetra nasal spray suspension Influenza vaccine (live attenuated, nasal) for children aged 2 to 17 years

Why should children aged 2-17 years get the flu vaccine?

Children, especially younger children, are at risk from complications of flu.  Children carry the flu virus in their system for longer than adults do, so they can spread it easily to vulnerable people around them.

The flu vaccine protects children from flu and also protects vulnerable people around them, for example their grandparents.

Why do pregnant women need the flu vaccine?

If you are pregnant, you are at higher risk of complications from flu. The flu can also affect your baby, for example, flu can cause miscarriage, premature birth and even stillbirth. The flu vaccine protects pregnant women during pregnancy and also protects their newborn baby during their first few months of life.

How safe is the flu vaccine?

The flu vaccine is very safe. Flu vaccines have been given for more than 60 years to millions of people worldwide.

What are the side effects of the vaccine?

Common side effects are mild. After the flu vaccine you may get side effects including soreness, redness and swelling where the injection was given. Headaches, muscle pains and tiredness can also develop. These side effects may last for a few days. Serious reactions are very rare; a severe allergic reaction occurs in one in a million people.

You should not get the flu vaccine if

  • you have had a severe allergic reaction (anaphylaxis) to a previous dose of flu vaccine or any part of the vaccine.
  • you are taking two medicines called combination checkpoint inhibitors (for example, ipilimumab plus nivolumab) which are used to treat cancer.
  • You have severe neutropenia (low levels of a type of white blood cells)  

What about people with egg allergy?

If you have egg allergy, talk to your GP before you get this vaccine.

When should you delay getting the flu vaccine?

You may have to delay getting the flu vaccine if you are unwell – with a high temperature of more than 38°C – until you are better.

Where do I get the flu vaccine if I am in one of the groups for whom the vaccine is recommended?

You can get the flu vaccine from University Pharmacy. Click on the link below and follow the simply step by step instructions.

What does the flu vaccine cost?

If the flu vaccine is recommended for you, then the vaccine and the consultation with  pharmacist is free. For all others the cost is €30.  For many, their companies have arrangements to cover the cost and we can invoice your company directly.  Please contact us in advance on  with any query or to facilitate any specific requests you may have.  Our clinics run by appointment and include evening appointments.  You can book online at the link below and select your time.

For more information visit: HSE Website


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