Winter Virus Surge Hits UK Despite Falling Flu Cases, Experts Warn
Britain is currently being battered by a significant wave of winter viruses, even as flu cases continue to steadily decline, according to expert warnings issued today. Leading virologists express concern that the recent flu outbreak may have left the public more vulnerable to other seasonal illnesses, with many individuals falling ill with one or more winter viruses simultaneously.
Record High Norovirus Hospitalisations
This alarming situation comes as the number of norovirus patients in hospitals across England reached record highs last week, with more than a thousand hospital beds occupied daily. Health officials are now warning of a potential 'second surge' in infections, despite rates having previously started to fall.
Surveillance programmes monitoring outbreaks throughout the UK indicate that flu hospital admissions continue to decrease in England, following one of the most severe seasons on record. However, more people than ever appear to be sick at present, with colds, coughs, and vomiting bugs spreading widely.
The Triple Threat of Winter Bugs
Professor Paul Hunter, a renowned infectious diseases expert from the University of East Anglia, explained to the Daily Mail: 'Most viral infections are more common in winter, and it is not unusual to see multiple infections at the same time.' Currently, experts identify a triple threat of winter bugs – norovirus, adenovirus, and rhinovirus – which could place additional pressure on an already stretched health service.
Professor Hunter continued: 'You can certainly catch more than one infection at the same time or close to the same time. But when we see co-infections, it is often difficult to say which is the main problem or whether the two are acting together to make someone more ill than they perhaps would be if they just had one infection – which is quite plausible and probably what we're seeing at the moment.'
Data Shows High Virus Levels
Data collected from the UK Health Security Agency (UKHSA) reveals that all three winter viruses have remained at high levels in recent weeks. Rhinovirus, more widely known as the common cold, is currently the most common cause of illness. While most rhinovirus infections are mild, they can lead to serious illness in at-risk individuals when occurring alongside other winter viruses.
Common symptoms include runny or blocked nose, cough, sore throat, headache, mild body aches, and fever – making it easily mistaken for the flu. Adenovirus has peaked in recent weeks, particularly affecting children under five. Although not a household name like the common cold, officials confirm it is one of the most common causes of viral infections.
Adenovirus and Rhinovirus Combination
Unlike the flu, which typically peaks in winter, adenovirus infections can occur at any time of year. Symptoms are usually mild and similar to the common cold – including fever, sore throat, and cough – but in more serious cases can mimic flu symptoms. Experts warn it can also cause other more serious illnesses including conjunctivitis, lung infections, ear infections, and gastroenteritis.
Professor Hunter suggested that a combination of adenovirus and rhinovirus could explain why people are experiencing worse colds than normal, with co-infections hitting the body's defense system harder. 'Adenovirus has shot up in the last couple of weeks, which isn't entirely unexpected,' he said. 'Immunity to respiratory viruses doesn't last very long, so the uptick in cases we're now seeing could be fall out from a couple of years ago.' He speculated that cases will remain high for the next couple of weeks.
RSV and Vaccination Efforts
Respiratory syncytial virus (RSV) has meanwhile fallen to baseline levels. However, officials warn that RSV remains stubbornly unchanged in older populations, prompting renewed calls for eligible groups to get vaccinated. According to the NHS, around 9,000 elderly people become infected with RSV each year and require hospital admission.
Earlier this year, the Government announced that from April, the RSV vaccine will be offered to additional groups, including those most vulnerable to serious outcomes from the infection.
Understanding Norovirus
Norovirus – commonly dubbed the winter vomiting bug – is highly contagious and requires very little exposure to make a person sick. While the threat of flu has reduced in recent weeks, this nasty bug can show similar symptoms, with both viruses causing chills, fever, and headaches. However, norovirus also causes explosive vomiting and diarrhoea.
Most people recover at home within a couple of days, but the virus can be deadly in older adults, young children, and people who are immunocompromised. The number of norovirus patients in hospital in England last week reached record highs, with experts warning that a return to pre-pandemic behaviours could be fueling this trend.
Protection and Prevention Measures
According to the latest figures, an average of 1,102 patients a day were in hospital with the bug, representing a 9 per cent rise compared with the previous week – the highest figure this winter. The UKHSA also recorded 981 positive norovirus laboratory results across the two weeks to 15 February – nearly 40 per cent higher than the long-term average of 713.
Dr Jamie Lopez Bernal, consultant epidemiologist at the UKHSA, advised: 'We are not yet at the end of the flu season. While trends are heading in the right direction, people should still take steps to reduce the spread, particularly around those more vulnerable.'
Amy Douglas, lead epidemiologist at the UKHSA, added that these viruses will hit vulnerable groups harder. She said: 'We should all remember the simple steps we can all take to stop norovirus spreading. Washing your hands with soap and warm water and using bleach-based products to clean surfaces will also help stop infections from spreading.'
Health officials have also encouraged people to ventilate indoor spaces, stay home if unwell, and consider wearing a face mask if they have to go outside while symptomatic. 'We don't have vaccines against everything, so for these viruses the best advice is avoiding crowded spaces,' they noted. Flu and RSV vaccines remain available on the NHS for those most at risk, including over-65s, pregnant women, young children, and people with long-term health conditions.
