With the cold weather approaching, NHS West Norfolk Clinical Commissioning Group (WN CCG) has launched a campaign to encourage local people to get the flu jab.
A radio advert urging people who are eligible to get the free vaccine is being played on local radio station KL.FM 96.7 for the next four weeks.
Dr Ian Mack, Chair of WN CCG, said: "Flu is not like a cold – it can be a really serious illness for some people and it doesn’t just affect older people.
"If you’re over 65, or pregnant or have underlying health issues such as asthma, diabetes, chest, heart, liver or kidney complaints, it’s vital that you receive an annual flu vaccination.
"The flu jab is completely safe, and it can’t give you flu."
From this year a nasal spray vaccine is also available to children aged two to three years, as well as children aged two to 18 with long-term health conditions.
An estimated 20 per cent of the population develops seasonal flu each year, and in some cases it can be fatal. The illness can also place a strain on hospitals, causing sudden rises in emergency admissions.
The flu vaccine changes every year to fight the latest strains of flu, so even if you had a jab last winter you need another one this year to stay flu safe.
For more information, speak to your GP or local pharmacist, or visit www.nhs.uk/flu