The Flu Shot: Should You Get the Annual Flu Vaccine?
Every year the flu vaccine comes up — but who really needs it, does it work, and is it safe? A clear, myth-busting guide to the annual flu shot and who benefits most.
Every year, the question comes around: should I get the flu shot? For something so routine, it's surrounded by surprising confusion and myths — "flu is just a bad cold", "the vaccine gives you flu", "only old people need it". The reality is more useful to know. This is a clear, plain-language, myth-busting guide to the annual flu vaccine — what it does, who benefits most, and how to decide. (Your doctor gives advice specific to you.)
Flu Isn't "Just a Cold"
Influenza (flu) is more than a heavy cold — it can cause high fever, severe body aches, and days in bed, and in vulnerable people it can lead to serious complications like pneumonia, or worsen existing conditions. Flu viruses also change each year, which is why the vaccine is updated annually and why a yearly shot is recommended for those who benefit. (See our cold/flu/COVID guide for telling them apart.)
Who Benefits Most from the Flu Shot?
- Older adults (typically 60/65+)
- People with chronic conditions — diabetes, heart, lung (asthma/COPD), kidney, or weakened immunity
- Pregnant women (flu can be more serious in pregnancy)
- Young children and their close contacts
- Healthcare workers and carers
- Anyone who simply wants to reduce their risk of a miserable flu
Does It Work?
The flu vaccine isn't 100% — because flu strains vary, it reduces your risk rather than guaranteeing you won't get flu. But it meaningfully lowers the chance of catching flu and, importantly, of getting seriously ill if you do — which is exactly why it matters most for vulnerable groups. Getting vaccinated also helps protect those around you.
Practical Points
- It's given once a year, ideally before flu season
- Common side effects are mild — a sore arm, sometimes feeling briefly off
- Tell the doctor about allergies or if you're unwell on the day
- It can usually be given alongside other recommended vaccines — ask your doctor
When to See a Doctor
Ask a doctor whether the annual flu vaccine is right for you — especially if you're older, pregnant, have a chronic condition, or care for someone vulnerable, where the benefit is greatest. Also see a doctor if you catch flu and are in a high-risk group or develop warning signs like breathing difficulty or a high fever that won't settle. An online consultation is a convenient way to check whether you should get vaccinated and where. A yearly shot is a small step that prevents a lot of misery for those who benefit. (See our guides on adult vaccines, cold/flu/COVID differences, and viral fever.)