People at risk of becoming seriously ill from flu and Covid-19 have just a short window to protect themselves before the viruses are in wide circulation, health chiefs have said.

One of Wales’s most senior doctors is concerned that many people with health conditions, which can increase the risk of hospitalisation from winter illnesses, have not yet taken up their offer of vaccination this year.

The most recent data shows fewer than 30 per cent of younger adults who are eligible have come forward for a free flu jab; 62 per cent of people aged 65 and over have been vaccinated.

Deputy Chief Medical Officer for Wales, Dr. Keith Reid said: “The flu is not just a ‘bad cold’ for people with chronic health conditions.

“Without vaccination, it could mean serious illness and an emergency admission to hospital.

“We know many young people with conditions like asthma or diabetes haven't got this vital protection yet.

“The peak virus season is close.

“Now is the time to come forward for your flu and Covid-19 jabs if you’re eligible.”

Health and social care workers are also strongly encouraged to take up the offer of a flu vaccine, to protect their health as they care for others.

Cabinet Secretary for Health and Social Care, Jeremy Miles said: “We are hugely fortunate in Wales to have a national flu vaccination programme to protect those most at risk of becoming seriously ill with the virus.

“The programme is also available to health and social care workers to ensure they stay well over the difficult winter months.

“I would encourage everyone who is eligible to come forward to get protected as soon as possible.”

There was a sharp decrease in flu circulation during the pandemic – mainly because of the measures and restrictions to prevent Covid-19 spreading – but since then, the number of people experiencing serious illness has risen.

The director of the Wales National Influenza Centre, Professor Catherine Moore said: “Since the pandemic we’ve seen influenza return to circulation, with more people being admitted to hospital with complications, some which could have been prevented by vaccination.

“Every winter we see increased hospitalisation and intensive care treatment of people with neurological, chronic respiratory, liver and cardiac conditions, due to complications of the flu or because it has worsened a previously known illness.

“Sadly, a proportion of these people will die as a result.”