Four illnesses are circulating in the UK this winter, in what has been dubbed the “quad-demic”.
Over a year since the official end of the COVID-19 pandemic, the virus is still prominent, with the UK Health and Security Agency (UKHSA) monitoring its activity levels weekly.
The governmental department also monitors levels of flu, respiratory syncytial virus (RSV) and norovirus, which all peak at different times during the season.
It is these four that make up the “quad-demic”, which one NHS doctor said can affect everyone – including the “fit and healthy”.
What is the ‘quad-demic’?
The term “quad-demic” refers to the “four very common viral illnesses that circulate every winter in different peaks,” Dr David Lloyd, an NHS GP told Sky News Breakfast.
The risk and complication rate of people catching all four of these illnesses at once heightens at this time of the year, hence the term, he added.
It comes as weekly figures released by the UK Health and Security Agency (UKHSA) on Thursday showed an increase of flu, RSV and norovirus.
COVID-19 was the only one where levels remained stable, but this could change week-on-week.
What symptoms to look out for
On the surface, flu, COVID-19, RSV and norovirus may seem similar, but they can cause different symptoms, according to the NHS.
Flu: Symptoms of flu can come on very quickly and can include a sudden high temperature, aching body, dry cough, sore throat, headache and exhaustion.
COVID-19: A high temperature, a loss or change to your sense of smell or taste, shortness of breath, exhaustion or a new continuous cough could mean you have Covid.
RSV: Symptoms typically start within a few days of getting infected and can include a runny or blocked nose, a cough, sneezing and tiredness.
Norovirus: An unpleasant stomach bug that can cause nausea, diarrhoea, vomiting, headache, aching limbs and a high temperature.
Data showed that RSV – which is a common cause of coughs and colds – was circulating at “medium levels”, with “increases seen in most age groups”. Hospital admissions and A&E visits caused by RSV also increased.
Flu – or influenza – activity levels increased, with a weekly mean positivity rate of 6.5%, while norovirus increased across all age groups, with adults aged 65 or over particularly affected, according to the UKHSA.
It said reports of the winter vomiting bug between 4-17 November were “almost double” the average of the past five seasons for the same two-week period.
Dr Lloyd explained that illness in winter happens more frequently because people spend more time in their houses together and socialising over Christmas.
“This is peak time so even if you are fit and healthy, your chances of catching all of these illnesses if quite high,” he said.
How can you protect yourself?
“Vaccines work against the quad-demic,” Dr Lloyd emphasised.
In fact, by getting vaccinated you halve your risk of catching any of the four illnesses, he said.
The NHS provides vaccinations against three of the four illnesses; flu, COVID-19 and, as of September this year, RSV.
The new RSV vaccine was developed as the illness can prove to be extremely dangerous for young babies and older people, especially those with heart or lung conditions, according to the NHS.
The health service said the vaccine would be a “game changer” and could typically prevent 5,000 infant hospitalisations and 2,500 adult hospitalisations.
Image: Dr Lloyd says vaccines ‘work against the quad-demic’. Pic: iStock
Analysis of the latest NHS vaccination data showed 335 vaccinations were given for COVID, flu and RSV per minute on average from 30 September to 17 November.
This works out at around 3.4 million vaccinations a week.
In total, nearly 25 million vaccinations have been delivered for the three illnesses since rollout began in September.
Dr Lloyd added that getting only one vaccination could help protect people from other illnesses due to what is known as viral interference.
“If you have had a vaccine against one of these diseases, it is triggering your body to produce non-specific chemicals that fight viruses in general. So by having one vaccine, you are protecting yourself against others as well,” he said.
“These illnesses all occur in different peaks, so it makes sense to get the flu vaccine because that’s the one that comes earliest, that will increase your chances of being protected against the quadruple, the triple, the double and the single infection.”
How to stop the spread if you are ill?
As with any spread of germs, it is best to wash your hands with soap and water and avoid close contact with others if you are ill, the NHS advises.
If you have diarrhoea or vomiting, the NHS says not to return to work, school or nursery until 48 hours after symptoms have stopped.
Dr Lloyd added that although mask wearing has “gone out of fashion”, wearing a face covering will also help prevent the spread.
A 54-year-old man and a 15-year-old boy have been arrested on suspicion of arson with intent to endanger life after a restaurant fire in east London on Friday.
Two remained in a critical condition on Sunday morning, according to the Metropolitan Police.
The restaurant suffered extensive damage in the blaze.
Two further victims are thought to have left the scene before officers arrived, Scotland Yard said.
Image: Woodford Avenue from above. Pic: UK News and Pictures
Police are still trying to identify them.
CCTV footage seen by the PA news agency appears to show a group of people wearing face coverings walk into the restaurant and pour liquid on the floor.
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Seconds later, the inside of the restaurant is engulfed in flames.
“While we have made two arrests, our investigation continues at pace so we can piece together what happened on Friday evening,” said the Met Police’s DCI Mark Rogers.
“I know the community [is] concerned and shocked by this incident.
Image: The moment the fire broke out.
“I would urge anyone with any information or concerns to come forward and speak to police.”
Hospital porter Edward Thawe went to help after hearing screams from his nearby home.
He described the scene as “horrible” and “more than scary and the sort of thing that you don’t want to look at twice.”
He said: “I heard screaming and people saying they had called the police.”
The 43-year-old said he saw a woman and a severely burned man who may have been customers.
Another witness, who did not want to be named, said he saw three “severely burned” people being doused by the emergency services and given oxygen.
“I can only imagine the pain they were going through,” he said.
On Saturday, the London Ambulance Service told Sky News: “We sent resources to the scene, including ambulance crews, an advanced paramedic, an incident response officer and paramedics from our hazardous area response team.
“We treated five people for burns and smoke inhalation. We took two patients to a major trauma centre and three others to local hospitals.”
A new fast-track asylum appeals process will be introduced to speed up the process of deporting people without a right to remain in the UK, the home secretary has said.
As it currently takes, on average, more than a year to reach a decision on asylum appeals, the government plans to set up a new independent panel focused on asylum appeals to help reduce the backlog.
Home Secretary Yvette Cooper said “completely unacceptable” delays in the appeals process left failed asylum seekers in the system for years.
There are about 51,000 asylum appeals waiting to be heard.
The new independent body will use professionally-trained adjudicators, rather than relying on judges.
Ministers are introducing a new 24-week deadline for the first-tier tribunal to determine asylum appeals by those receiving accommodation support and appeals by foreign offenders.
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Police clash with protesters in Bristol
But they believe the current tribunal system, which covers a wide range of different cases, is still failing to ensure failed asylum seekers can be returned as swiftly as possible, nor can it accommodate a fast-track system for safe countries.
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It comes amid protests about the use of hotel accommodation for migrants.
The home secretary said the overhaul would result in a system which is “swift, fair and independent, with high standards in place”.
She said: “We inherited an asylum system in complete chaos with a soaring backlog of asylum cases and a broken appeals system with thousands of people in the system for years on end.
“That is why we are taking practical steps to fix the foundations and restore control and order to the system.
“We are determined to substantially reduce the number of people in the asylum system as part of our plan to end asylum hotels.
“Already since the election, we have reduced the backlog of people waiting for initial decisions by 24% and increased failed asylum returns by 30%.
“But we cannot carry on with these completely unacceptable delays in appeals as a result of the system we have inherited which mean that failed asylum seekers stay in the system for years on end at huge cost to the taxpayer.”
Official figures released earlier this month showed a total of 111,084 people applied for asylum in the UK in the year to June 2025, the highest number for any 12-month period since current records began in 2001.
‘Waving immigrants through even faster will not fix the problem’
Chris Philp, the shadow home secretary, said: “I think this goes nowhere near far enough.
“The underlying rights, which allows most illegal immigrants to stay here, are not changing. Simply waving illegal immigrants through even faster to full housing and welfare rights will not fix the problem.”
Image: Chris Philp
He added: “Immigration judges will still apply ever expanding common-sense defying definitions of ECHR rights to allow foreign criminals and illegal immigrants to stay here.”
But the Liberal Democrats have been more positive in their response, with shadow attorney general, Ben Maguire, saying: “A faster application process would mean that those with no right to be here are sent back swiftly and those who do have a valid claim can get a job, integrate and contribute to the community.”
Asked for his thoughts on the policy, immigration lawyer Harjap Singh Bhangal told Sky News that it “definitely sounds like some sort of solution”.
He pointed that the backlog of asylum seekers waiting for a decision is “huge”, around 51,000 people – and that during this time, they are not allowed to work.
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A new fast-track asylum appeals process will be introduced to speed up the process of deporting people without a right to remain in the UK.
He said: “The equivalent would be saying that imagine if A-level students this year sat the exams and were told ‘well, hold on, you’re not going to get your results for two years’ time. But in the meantime, you can’t go to university.’
“You’d have mayhem, and it’d be pandemonium in the street. You’d have broken people idle with nothing to do. Essentially, this is what’s happening to asylum seekers.”
He added that one of the reasons it takes so long for cases to be heard is because asylum seekers have to represent themselves in court, which can mean upwards of half a day is spent translating and explaining everything to them.
Mr Bhangal also said the immigration system is “broken”, because “they take ages to make a decision which could be made in one week”.
A man who died after suffering “serious head injuries” while “working on a fairground ride” has been named as Corrie Lee Stavers.
Emergency services were called to the Spanish City Summer Funfair in Whitley Bay in North Tyneside after reports that a man, in his 20s, had been injured around 2.15pm on Saturday, police said.
Mr Stavers, 28, was treated at the scene but was declared dead a short time later.
In a statement issued by the police, his family said: “It’s with broken hearts that we share the devastating news that our beloved Corrie has passed away.
“He was tragically taken from us in an accident while working on a fairground ride. None of us were prepared for this, and the pain of losing him so suddenly is impossible to put into words.
“Our lives will never be the same without him, but his memory will live on in our hearts forever.
“We love you endlessly Corrie, and we miss you more than words can ever say.
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“You’re with our mam now – rest in peace Corrie.”
The funfair, which is in Whitley Bay’s Spanish City Plaza area, has been shut “until further notice” and the Health and Safety Executive has been informed.
The annual funfair had opened on Thursday and had been due to run until Bank Holiday Monday.