The flu vaccine is offered free to:
- children aged 2 or 3 years old (on 31 August before flu vaccinations start in the autumn)
- some school-aged children
- children with a health condition that puts them at greater risk from flu
How the nasal spray works
The nasal spray contains viruses that have been weakened to prevent them from causing flu but will help your child to build up immunity. This means your child will be better able to fight off flu. The vaccine is absorbed really quickly in the nose so, even if your child sneezes immediately after having had the spray, there’s no need to worry that it hasn’t worked.
Why the vaccine cannot cause flu
The vaccine cannot cause flu because the viruses in it have been weakened to prevent this from happening.
Further information is available on NHS.UK.