Common questions about flu vaccinations
What is flu?
Flu is a highly infectious virus which affects your respiratory tract – your nose, throat and lungs. Symptoms include headache, high fever, chills, sore throat, aching muscles and joints and a dry cough.
What long term conditions are eligible for free NHS flu vaccination?
The flu vaccine is offered free on the NHS to people with certain long-term health conditions, including:
- respiratory conditions, such as asthma (needing a steroid inhaler or tablets), chronic obstructive pulmonary disease (COPD), including emphysema and bronchitis
- diabetes
- heart conditions, such as coronary heart disease or heart failure
- being very overweight – a body mass index (BMI) of 40 or above
- chronic kidney disease
- liver disease, such as cirrhosis or hepatitis
- some neurological conditions, such as Parkinson's disease, motor neurone disease, multiple sclerosis (MS), or cerebral palsy
- a learning disability
- problems with your spleen like sickle cell disease, or if you've had your spleen removed
- a weakened immune system as a result of conditions such as HIV and AIDS, or taking medicines such as steroid tablets or chemotherapy
Talk to your doctor if you have a long-term health condition that is not in one of these groups. They should offer you a flu vaccine if they think you're at risk of serious health problems if you get flu.
How effective is the flu vaccine?
The flu virus is very infectious, so if there is an outbreak, it can be hard to avoid unless you have natural immunity to it.
The flu vaccine is the best defence available against the flu, providing up to 90% complete protection. Hand washing and trapping coughs and sneezes in a tissue, and then binning the tissue will also help avoid the spread of infection.
Can the flu jab cause the flu?
No.
The vaccine contains no live flu virus so it is impossible for it to give you the flu.
How does the vaccine work?
The vaccine contains a viral protein that enables your immune system to make antibodies. These antibodies help protect you against the strains of the flu virus most likely to hit the UK this flu season as predicted by the World Health Organisation.
How long does the vaccine take to work?
Protection starts to develop about a week after receiving the vaccine.
Are there any side effects from having the flu jab?
Discomfort is minimal but occasionally slight soreness at the injection site, or a slight temperature or headache 24 hours after the jab may be experienced. Serious side effects are extremely uncommon.
Does the flu vaccine protect against colds?
No, the viruses that cause colds are different from the ones that cause flu.
Can anyone catch the flu?
Yes, no matter how fit and healthy the individual is, they can end up in bed with the flu.
Does having the jab protect you for life?
No. The flu virus is constantly changing, so each year the vaccine is slightly different.
Should anyone not have the flu jab?
A small number of patients may not be suitable for the flu vaccination. The pharmacist will provide full advice during your consultation prior to undertaking the vaccination.
Flu vaccine and coronavirus (COVID-19)
Flu vaccination is important because:
- If you're at higher risk from coronavirus, you're also more at risk of problems from the flu.
- If you get flu and coronavirus at the same time, research shows you're more likely to be seriously ill.
- It'll help to reduce pressure on the NHS and social care staff who may be dealing with coronavirus.
- If you've had COVID-19, it's safe to have the flu vaccine. It'll be effective at helping to prevent the flu.
(Source: NHS.UK - Flu vaccine - NHS www.nhs.uk)
Does the NHS provide flu jabs?
Yes, but it focuses its effort on specific groups such as the over 65s. Healthy working adults only receive a flu vaccine if provided by their employer or if they choose to pay for it privately.
What is Bird and Avian flu?
Influenza is a family of viruses which affect humans, pigs and birds, producing the illnesses “flu”. Swine flu and Bird Flu are variants.
What is a flu epidemic?
A flu epidemic is when a high proportion of people get influenza, often as a result of a significant change in the flu virus. A flu pandemic occurs when a major change to the flu virus emerges, for which worldwide, patients have little defence.