The government has issued a reminder for those who are yet to receive their flu jabs.
To be fully protected from flu in time for Christmas, the UK Health Security Agency (UKHSA) is urging people to get their jabs this week.
In England, more than 35 million people are eligible for a free flu vaccine this winter including people aged 65 and over, those with underlying health conditions, and pregnant women.
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Children are also offered the flu vaccine to help protect them and reduce the spread of flu to more vulnerable people. This includes children aged two and three on August 31, and schoolchildren aged up to year 11.
The vaccine takes 14 days before it provides maximum protection, so people should get it before December 10 to help keep themselves and vulnerable relatives safe throughout the festive season.
While many people aged 65 and over have already come forward for their flu vaccination, exceeding the WHO target of 75%, less than half of those with underlying health conditions have taken up the offer.
Dr Conall Watson, consultant epidemiologist at UKHSA, said: "The threat of flu has not gone away – it can cause serious illness and be fatal. Flu vaccination saves lives. If you are eligible, you don’t have to wait to be called up - book your flu vaccine as soon as possible to help protect yourself and family this Christmas."
Eligible adults can book their free NHS flu vaccination at their GP practice or local pharmacy. Mums-to-be can also get the jab at their maternity service.
Children are offered a quick and painless nasal flu spray. Parents can book an appointment at their child’s GP surgery for two and three year olds. Schoolchildren receive their flu vaccine at school - parents should look out for the consent form.
Sajid Javid, health and social care secretary, said: "Getting your winter vaccines – whether that is your flu jab if eligible or your booster jab - is one of the most important things people can do for yourself an your family this winter.
"Record numbers of people took up the offer of a free flu vaccine last year and the programme is expanding even further this year, with a record 35 million people in England eligible.
"Don’t delay – book your flu vaccine as soon as possible."
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