The Flu Vaccine – What’s the Big Deal?

By Nisha Patel - Pharmacist and Co-Founder -


I’ve felt compelled to write this article as a mother and as a Pharmacist. As a mother, I’m very clear about my position on the flu vaccine. Intuitively, I don’t see the need for the flu vaccine for me or my family. We’re all relatively healthy. We don’t get ill too often. We try to lead a healthy life and overall our health is good. If we do get ill, we rest and trust our bodies to take care and heal itself. We may help it along with home or natural treatment and sometimes even medicine. But any approach would be as gentle as possible with minimal side effect. After all, we don’t want the treatment or prevention remedy to result in more sickness. By staying at home, we aim to look after ourselves and protect others too.

If any of us had an underlying health condition, I may take a different view.

The difficulty lies in being a Pharmacist. I have a duty to public health and of course the population are not all healthy. So the question is, does the flu vaccine protect the population from getting flu? As much as I trust my intuition with my own family, I would always want to approach this with a scientific point of view when dealing with the general public, from a position of not knowing and then letting the evidence present itself. I wanted to find out how effective the vaccine is in preventing flu and whether the benefits outweigh the risks (i.e. the side effect profile of the vaccine)? In order to do this we must look at various factors. From my personal knowledge and research these are some of my findings.

What is seasonal flu?

Flu is a common infectious viral illness spread by coughs and sneezes. The symptoms can be unpleasant and can include a high temperature (fever) of 38C (100.4F) or above, tiredness and weakness, a headache, general aches and pains, a dry, chesty cough. A healthy individual will usually recover after a week. Flu can be caught all year round, but is especially common in winter and this is known as seasonal flu.

Why is flu more common in the winter?

  1. Some suggest it’s because we spend more time indoors where germs can breed. 
  2. Lack of vitamin D can weaken the immune system hence making us more susceptible
  3. The flu virus thrives in the cold, dry air of winter, but suffers in the warm, humid air of summer. [1]

If you are fit and healthy there is no need to see a doctor, the best thing to do is to stay at home at rest. This is particularly important to prevent the spread of flu. According to the NHS website, flu is usually most infectious from the day symptoms start and for a further three to seven days. Children and people with a lowered immune system may be infectious for a few days longer [2].

Flu like symptoms are usually mistaken for the flu. A scientific study carried out in China and published by Imperial College London showed adults over 30 typically get the actual flu about twice a decade. Whereas children get it more often typically once every two years but as they get older their immunity to the virus increases. Suggesting the virus builds up a person’s immunity to future variant flu viruses. [3] [4]

Dr Adam Kucharski, who worked on the study at Imperial College London said: “There’s a lot of debate in the field as to how often people get flu, as opposed to flu-like illness caused by something else. These symptoms could sometimes be caused by common cold viruses, such as rhinovirus or coronavirus. Also, some people might not realise they had flu, but the infection will show up when a blood sample is subsequently tested.” [3]

The flu vaccine available in the UK

In the UK, doctors surgeries and certain pharmacies get paid a fee of around £9 to administer the flu vaccination per person, to an at risk person e.g. over 65, pregnant women, children and adults with certain long term health conditions e.g diabetes, asthma etc. and severely immunocompromised patients. The vaccine is available free of charge to these patients, because it is thought they are more likely to suffer from complications of the flu e.g pneumonia.

It is important to note that these complications can also be caused by other viruses, that the flu vaccine doesn’t offer any protection towards.

Adults over 18 and children aged 6 months to less than 2 years in these groups are given an annual injection, while children aged 2 to 17 are given an annual nasal spray.

The annual nasal spray is also available to healthy children aged two, three and four years old, and to children in school years one, two and three. These are being rolled out in schools as part of the school vaccination programme. 

The vaccine is also available in certain pharmacies to healthy adults who want to be vaccinated, at a cost to the person.

What is the flu vaccine?

The injectable flu vaccine-contains the inactivated form of the virus.

The nasal spray contains live attenuated influenza vaccine (LAIV, Q/LAIV), which contains the attenuated or weakened form of the virus.

How does it work?

Flu vaccines cause the body to produce antibodies, which provide protection against the viruses in the vaccine. The seasonal flu vaccine protects against the influenza viruses that research indicates will be most common during the upcoming season.

However this research is not always accurate and as Dr Richard Pebody, Public Health England’s head of flu surveillance says “It takes from February through to August / September to produce sufficient quantities of the flu vaccine. If a change in the virus is detected once production has started it is not possible to change it”. [5].

My problem with the vaccine

The flu vaccine is not always effective, as shown in February 2015, it helped prevent flu in 3 out of 100 people.

According to the department of health the flu vaccine has had a typical effectiveness of 50%. However, in 2015 it was shown to be only 3% effective in a study conducted on 1,314 patients in primary care across the UK. So in a population of 100 people it prevented flu in merely 3 people. This is because every year the world health organisation predict which viruses they think are going to be circulating in the following flu season. If the match is wrong once the vaccines are in production, nothing can be done about it. [5]

According to the department of health website

“The UK findings follow the recent publication of the US and Canada’s mid-season vaccine effectiveness estimates, both of which also revealed the vaccine had unfortunately provided little protection against circulating A(H3N2) viruses this season in these countries. This was also linked to drift observed in H3N2 viruses. [5]

It may cause flu like symptoms in as many as 1 in 10 people 

This is an excerpt from the nasal spray flu vaccine leaflet[6] ;

Side effects

Very common (may affect more than 1 in 10 people):

  • runny or stuffy nose
  • loss of appetite
  • feeling generally unwell
  • headache

Common (affecting up to 1 in 10 people):

  • high temperature (fever)
  • aching muscles

Less common (affecting up to 1 in 100 people):

  • nose bleed (it is thought these are unlikely to be caused by the vaccine itself)
  •  rash
  • allergic reactions

The flu vaccination can cause flu like symptoms in as many as 1 in 10 people.  So last year it prevented flu in 3 in a 100 people but could have given flu like symptoms to 10 out of a 100 people. These figures make me feel incredibly uncomfortable. Last year we gave more people flu like symptoms then preventing flu itself.

The nasal spray is not recommended by the Centers for Disease Control and Prevention (CDC)

The centers for disease control and prevention don’t recommend the nasal flu vaccine because of data showing lack of efficacy [7], so why are we pushing it in our schools?

The nasal spray is a black triangle medicine

This means it is a relatively new drug, with relatively limited information about its safety from clinical trials available. Trials that have been conducted are relatively small numbers with short time scales and identify more common adverse affects. Any black triangle drug requires more surveillance to establish rare or long term adverse affects. Therefore, effective surveillance after marketing is essential for the identification of rare adverse effects, and to ensure that appropriate action is taken [8].

I strongly believe schools are not a place to be given these types of medication. We don’t know long term side effects and have limited information on the full side-effect profile. If parents are interested in vaccinating their children, I feel a more appropriate setting would be a doctors surgery where all the information regarding effectiveness, side effects along with the fact it is a black triangle drug should be given. It is then up to parents to decide what is best for their children.

The injectable vaccine is most effective in healthy adults subgroup

The flu vaccine works best on healthy adults and older children and isn’t as effective in the at risk groups e.g older people, young children, people with certain chronic illnesses. It also doesn’t protect a patient from other viruses, which can still lead to complications in these groups.[9]


In summary, the whole flu immunisation programme seems counter intuitive to me. On one hand we are saying it’s best to vaccinate at risk groups because they are more susceptible to flu and complications, but it is actually less effective in these groups. It is most effective in healthy adults and older children who if they got flu, typically once every five years would most likely recover well, with a low probability of complications.

My feeling on this is that people should very much be given the choice of what they want. If you or your family are at risk you may want all the protection you can get.

All the information should be provided and then a personal decision should be made. As healthcare professionals, we should not be coercing or making individuals feel guilty about not vaccinating. We should be providing true informed consent, despite any financial benefit we may receive.

Lastly, I don’t think schools are an appropriate setting for children to get vaccinated with what I can gather is an ineffective vaccine, which still has much safety data to be collected as demonstrated by its black triangle status.

For anyone who doesn’t want the flu vaccine

My recommendation would be:

  1. Practice good health habits-get plenty of sleep, be physically active, get outdoors in the fresh air, manage your stress, drink plenty of water and eat nutritious food.
  2. As most people are low in vitamin D in the winter months, supplementation is recommended.
  3. Take good quality probiotics and multivitamins in case you are deficient.
  4. Wash your hands regularly.
  5. Avoid close contact with people who are sick by keeping your distance.
  6. Clean and disinfect frequently touched surfaces at home, work or school, especially when someone is ill.
  7. Avoid touching your eyes, nose and mouth as this can be how germs are spread.
  8. Stay at home and rest if you are sick. This will help get you better and prevent the flu from spreading.
  9. Cover your mouth and nose with a tissue when coughing or sneezing. Encourage small children to catch their sneeze/cough in a tissue. It can prevent others from getting sick.

Much of the above advice can also be found on the CDC website [10].

I’d be very interested in hearing your thoughts. I’m open to comments, feedback and any research you may have done. I look forward to hearing your comments.










Nisha Patel is the co-founder of natural health star and is a Pharmacist with over 16 years of experience. Her main interest lies within natural preventative healthcare and her focus if often prevention rather than treatment.

To read more about Nisha click here.

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4 Comments on “The Flu Vaccine – What’s the Big Deal?”

  1. Hi Nisha, this is a very good and informative article, thank you so much for sharing the information! I didn’t go ahead with the nasal spray for my children, as I prefer the natural way too, and I also had a “bad feeling” about it. Alessandra

    1. Hi Alessandra, I agree with this article too, I think it should be done at your local Gp surgery with the parent/carer present, I am currently having the dilemma in that I don’t want my son to have it, but because it is being done at school a lot of parents are just following what others are doing and making me feel pressured into having it as I am now worried my son being one of the few that is not having it done, and the chances of him catching the virus etc. Did you keep your children off school when you knew the school were having it? Clare.

      1. Hi Clare-I’m so sorry you are feeling pressured. This is one thing I feel very strongly about and mentioned in the article. I don’t think parents/people should feel coerced or pressured into doing anything they have concerns about. Is there anyone you can talk to this about? Possibly the school or your doctor. I can completely understand that you would like to have it done at a drs surgery, whist being present. This way you can ask questions about it.
        I know you asked Alessandra the question but maybe I can help with what I have done. I didn’t give consent for my girls to have the nasal spray, but I also don’t feel it necessary for them to have a day off school either. I’m happy with my decision and of course there is always the possibility we could get the flu, but because we are all relatively healthy, I personally am happy to take that risk. In the meantime we try to take as many other preventative measures as possible. I hope this helps.

    2. Hi Alessandra-I’m glad you found the article informative and honestly I did have a bit of a dilemma weather I should share it. But I felt it was important and I’m glad I did now. I believe trusting our intuition is important but being armed with lots of trusted information to help make these decisions easier can also help.

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