Flu Vaccine Types

Flu Vaccine Types

What are flu vaccinations and
how can your team benefit from them?

Flu vaccines cause a person’s immune system to develop antibodies to protect against infection from the flu strains likely to be in circulation in the coming winter. Flu vaccinations are one of the simplest and most effective ways of protecting your employees health and wellbeing. We know that as a company you are concerned about business continuity and the welfare of your staff. It is important to get the right protection for you and your employees this coming flu season.

As a leading provider of corporate flu vaccination programmes we offer a variety of vaccine types to meet your employees every need.

What types of vaccines do we stock?

To ensure you and your team have the best level of protection against the flu this year, we are recommending and making available the following vaccinations:

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    Premium Quadrivalent

    Supemtek is our Premium Quadrivalent flu vaccine. It is produced using recombinant technology, which allows an exact molecular match between the vaccine and the surface proteins (antigens) of each of the 4 influenza strains. This avoids the risk of mutations that can sometimes occur when viruses are grown in culture (egg/ cell-based).
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    Benefits

    1. Premium recombinant technology
    2. Contains three times more antigen than both egg-based and cell-based standard-dose vaccines

    Considerations

    • Suitable for: 18 years and older
    • Not egg-based
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    Standard Quadrivalent

    The Standard Quadrivalent flu vaccine is manufactured using egg-based technology and designed to protect against four different flu viruses. They are the most widely used flu vaccine, and are generally more widely available than the newer options (recombinant/ cell-based).
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    Benefits

    1. Offers good general protection for healthy adults at a lower price point.

    Considerations

    • Suitable for: 6 months to 64 years old
    • May contain traces of egg protein
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    Cell-Based Quadrivalent

    The Cell-Based Quadrivalent flu vaccine provides protection from four different flu viruses. This vaccine is made from cell grown cultures rather than egg proteins, and may provide a closer match to circulating “wild” flu viruses than the Standard Quadrivalent option.
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    Benefits

    1. Slightly stronger immune response compared to egg-based vaccines
    2. Recommended for those with severe egg allergy or wishing to avoid egg-based vaccines
    3. Suitable for: religious or dietary preferences against egg-based vaccines

    Considerations

    • Suitable for: 2 years to 64 years old
    • Not egg-based
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    Adjuvanted Quadrivalent

    The Adjuvanted Quadrivalent flu vaccine, FluAd, is designed to protect against four different flu viruses. The adjuvant generates a greater immune response in older adults, making it the preferred option, alongside recombinant vaccines, for seniors who require more flu protection.
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    Benefits

    1. Contains an adjuvant, an immune stimulant, to boost the immune response

    Considerations

    • Suitable for: 65 years and older
    • May contain traces of egg protein
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    Quadrivalent Nasal Spray

    Fluenz Tetra is a Quadrivalent Nasal Spray vaccine containing live but weakened flu virus and is designed to protect against four different flu viruses. The strains used in the vaccine whilst "live" are “cold-adapted” so they cannot survive or multiply at body temperature, meaning they cannot cause infection.
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    Benefits

    1. The vaccine is sprayed directly into the nose, not given by injection.

    Considerations

    • Suitable for those aged 2 - 18 years
    • May contain traces of egg protein & gelatin
    • Vulnerable to supply issues - not always available

How effective is the flu vaccine?

Flu vaccinations are approximately 70-80% effective

Whilst no vaccine is 100% effective, vaccinating your workforce is the best defence against flu. An annual flu jab will help protect your team from suffering with flu or passing it onto others in the workplace and at home. Protection is not instant, it usually takes 14 days to develop antibodies against the flu strains vaccinated against and provide protection against influenza virus infection.

Every flu season there are different flu strains that circulate. Flu strains can mutate which is why the composition of flu vaccinations changes every year.

The WHO uses sophisticated systems for monitoring circulating strains of flu around the world, so it is usually possible to predict which strains are most likely to cause trouble, with considerable accuracy. 

At Fleet St. Clinic, our vaccine of choice would be the premium recombinant flu vaccine, Supemtek, on the basis that it significantly increases the probability of good protection.

Side Effects

What’s in the standard 2023/2024 flu jab?

This year the Standard Quadrivalent vaccine includes:

  • an A/Victoria/4897/2022 (H1N1)pdm09-like virus;
  • an A/Darwin/9/2021 (H3N2)-like virus: and
  • a B/Austria/1359417/2021 (B/Victoria lineage)-like virus.
  • a B/Phuket/3073/2013 (B/Yamagata lineage)-like virus.

This year the Cell-Based Quadrivalent vaccine includes:

  • an A/Wisconsin/67/2022 (H1N1)pdm09-like virus;
  • an A/Darwin/6/2021 (H3N2)-like virus; and
  • a B/Austria/1359417/2021 (B/Victoria lineage)-like virus
  • a B/Phuket/3073/2013 (B/Yamagata lineage)-like virus.
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