If you're at risk of complications from flu, make sure you have your annual flu vaccine available from September onwards.
There are two types of flu vaccine:
The effects of flu
Flu symptoms can hit quite suddenly and severely. They usually include fever, chills, headaches and aching muscles. You can often get a cough and sore throat.
Because flu is caused by a virus and not bacteria, antibiotics won't treat it.
Anyone can get flu, but it can be more serious for certain people, such as:
- people aged 65 or over
- people who have a serious medical condition
- pregnant women
If you are in one of these groups, you're more vulnerable to the effects of flu (even if you're fit and healthy) and could develop flu complications, which are more serious illnesses such as bronchitis and pneumonia, which could result in hospitalisation.
Flu can also make existing medical conditions worse.
Read more about flu.
Should you have the flu jab?
See your GP about the flu jab if you’re 65 or over, or if you have any of the following problems (however old you are):
Your GP may advise you to have a flu jab if you have serious liver disease, multiple sclerosis (MS) or some other diseases of the nervous system.
Read more about who should have the flu jab.
Pregnant women and the flu jab
If you're pregnant, you should have the flu jab, regardless of the stage of pregnancy you've reached. Pregnant women are more prone to complications from flu that can cause serious illness for both mother and baby.
If you are pregnant and catch flu, talk to your GP urgently as you may need treatment with antiviral medicine.
Read more about the flu jab in pregnancy.
Children and the flu vaccine
The flu vaccine for children is a nasal spray and is available each year on the NHS for two and three year olds.
In some parts of the country, preschool and primary school children between the ages of four and 10 may also be offered the vaccine.
Over time, as the programme rolls out, all children between the ages of two and 16 will be vaccinated against flu each year with the nasal spray.
Children with a long-term health condition should also have a flu vaccination because their illness could get worse if they catch flu. This includes any child over the age of six months of age with a long-term health problem such as a serious respiratory or neurological condition.
If you have a child with a long-term condition, speak to your GP about whether they should have the flu vaccination. Some children with a long-term health condition may be advised to have the flu vaccine injection rather than the nasal spray.
Carers and the flu jab
If you’re the carer of an elderly or disabled person, make sure they’ve had their flu jab. As a carer, you could be eligible for a flu jab too. Ask your GP for advice, or read our information about Flu jabs for carers.
How the flu vaccine works
The injected flu vaccine contains inactivated strains of the flu virus and therefore cannot cause flu. The flu virus in the vaccine is often grown on fertilised hens’ eggs although egg-free flu vaccine may be available for people with egg allergy.
The vaccine contains live, but weakened, forms of flu virus which do not cause flu in those vaccinated.
The nasal spray flu vaccine for children contains live, but weakened forms of flu virus which do not cause flu in those vaccinated. Again, the flu virus in the vaccine is grown on fertilised hens' eggs so children with a known egg allergy should be given an alternative vaccine
Read more about how the flu jab works and flu vaccine ingredients.
Read more about how the children's flu nasal vaccine works.
How to get the flu jab
If you think you need a flu vaccination, check with your GP, practice nurse or your local pharmacist.
The best time of the year to have a flu vaccination is in the autumn from the beginning of October to early November. Most GP surgeries arrange flu vaccination clinics around this time. It’s free and it's effective against the latest flu virus strains.
Even if you've already had a flu jab in previous years, you need another one each year. The flu jab may only protect you for a year. This is because the viruses that cause flu are always changing.
The pneumococcal vaccine
When you see your GP for a flu jab, ask whether you also need the pneumococcal vaccine, which protects you against some forms of pneumococcal infection including pneumonia.
Like the flu jab, the pneumococcal vaccine (also known as the pneumonia vaccine or "pneumo jab" available free on the NHS to everyone aged 65 or over, and for younger people with some serious medical conditions. But it's a one-off jab rather than an annual one, like the flu jab.
Find out if you should have the pneumococcal vaccine.
How effective is the flu jab?
No vaccine is 100% effective, however, people who have had the flu jab are less likely to get flu. If you do get flu despite having the jab, it will probably be milder than if you haven’t been vaccinated.
Flu jab side effects
The flu jab doesn’t cause flu as it doesn’t contain live viruses. However, you may experience side effects after having the jab, such as a temperature and aching muscles for a couple of days afterwards. Your arm may feel sore at the site where you were injected. More severe reactions are rare.
The flu vaccine only protects against flu, but not other illnesses caused by other viruses, such as the common cold.
Read more about flu jab side effects.
Who shouldn’t have the flu jab?
You shouldn't have the flu vaccination if:
- you've had a serious reaction to a flu vaccination before
- you have a high temperature (postpone it until you're better)
Not all flu vaccines are suitable for children, so discuss this with your GP beforehand.
Speak to your GP, practice nurse or pharmacist if you have any further questions.
Read more about who should avoid the flu jab.
Read more about the flu jab.