New Vegan Flu Vaccine arrives in UK

The time of the traditional, egg based flu vaccine may be coming to an end, with new, more ethical alternatives available.

How is the Egg Based Vaccine Made?

Diagram of egg vaccine process. By Mouagip, in public domainIn the UK, flu vaccines up until this year were all made with eggs. The process uses fertilised chicken eggs at 11-12 days old – a chick would usually hatch at 21 days [1][2].

The egg is injected with the various virus strains specified by the World Health Organisation as being a threat that particular year. Then, it is left to develop for another 48 hours, incubated (and presumably the chick continues to grow). Over the 48 hours the virus is weakened or destroyed by the egg.

Then, the egg white, the albumen, is harvested and purified. It takes 3 chicken eggs for each vaccine. [3]

Should I have this eggy-vaccine?

There is no right or wrong answer to this question. I have always said no, even though I am eligible because I have asthma. However, last year, I was so seriously ill with flu for so long that I said I would have it this year. I also put some effort into sorting out my asthma (review, new inhalers, dehumidifier and air purifier in the house etc) so the chance of me needing the vaccine was minimised.

I know others who have made the same decision, and others who have rejected it regardless. It doesn’t have to be the same choice every year, remember. If you are pregnant, or the primary earner in your family, or have a serious health problem – why to have it this year, and re-asses next time.

Thankfully, from this year, it’s going to be easier to get a vegan version of the vaccine! Read on for more info!

A Vegan Version?!

By Timisstuck - CC BY-SA 4.0
Madin-Darby Canine Kidney cells

There is another way of making vaccines though, using mammalian cells. In this case it’s the cells from a dog’s liver. But don’t worry, no dogs are harmed or killed in this process – liver cells divide easily. The Manufacturer of the new, more ethical vaccine said:

“Flucelvax Tetra is manufactured using influenza virus grown in Madin Darby Canine Kidney (MDCK) cells rather than embryonated hens’ eggs. MDCK cells are a continuous, laboratory maintained, cell line. Continuous cell lines originate from a natural tissue source, but have adapted to grow  and divide “unendingly” under laboratory conditions and so have unlimited availability.”

Indeed this cell line has been alive since the cells were first taken from a spaniel in 1958! [4] It’s not clear what happened to the original dog, but I don’t believe it would necessarily have been harmed or killed for the extraction of liver cells alone.

About the New Vaccine

The new vegan vaccine is called Flucelvax Tetra. You can read about it’s availability on the NHS here:  vaccines-for-19-20-seasonal-flu-vaccination-programme.

My local GP is so far saying it is not available, but I will keep you posted. The pharmacist says it’s possible to order it in, but not till October. You may have to ask repeatedly or make a full. You may have to pay. But this vaccine IS available in all of Europe from this year.

As far as I have been able to find, the vaccine is 100% Vegan in terms of ingredients, however, I am waiting for final clarification on this from the manufacturer about that. It’s not clear if the specific vaccine is tested on animals – I assume it will have been. The general process will also have been tested on animals at some point.

What did you do?

Good luck, and comment/reply to let us know how you got on!!

References

[1] https://en.wikipedia.org/wiki/Chicken#Embryology

[2] https://en.wikipedia.org/wiki/Influenza_vaccine#Manufacturing

[3] https://www.healthline.com/health-news/why-we-grow-flu-vaccines-in-chicken-eggs

[4] https://en.wikipedia.org/wiki/Madin-Darby_Canine_Kidney_cells#History