*Children born between 1 September 2011 and 31 August 2014
Children with flu have the same symptoms as adults, including fever, chills, aching muscles, headache, a stuffy nose, a dry cough, and a sore throat lasting up to a week.
Some children develop a very high fever or complications such as bronchitis, pneumonia and a painful middle ear infection.
The children's flu vaccine is offered as a yearly nasal spray to young children to protect them against flu. The vaccine is given as a single spray up each nostril. Not only is it needle-free, the nasal spray is quick, painless, and just as effective as the injected flu vaccine.
Don't put it off – ask your GP about the free flu nasal spray for your child.
Keep your family warm. Your home should be at least 18C (65F). You may be eligible for financial schemes and discounts to help you pay for heating. See Keep Warm, Keep Well for details
Deonne, 20, has a young son who was given the free flu nasal spray
If you start to feel unwell, even if it's a cough or a cold, don't wait until it gets more serious. Seek advice from your pharmacist.
From everything you need to know about the flu jab to coping with coughs and colds, find out how to stay healthy this winter on NHS Choices.