Norovirus In UK And Flu In US Are At A  Record High: What Is Making Everyone Sick?

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Updated Feb 22, 2025 | 07:00 AM IST

Norovirus In UK And Flu In US Are At A Record High: What Is Making Everyone Sick?

SummaryThe US flu season has caused at least 33 million illnesses, 430,000 hospitalizations, and 19,000 deaths. Meanwhile, UK norovirus cases hit a record high, with 1,160 hospitalizations daily, a 22% increase.

This winter has seen a relentless wave of seasonal illnesses, with norovirus cases skyrocketing throughout the UK and flu cases setting records in the US. Hospitals are at capacity, emergency rooms are full, and flu outbreaks among children have resulted in school closures. The magnitude of infections is staggering, and many people are left wondering—why is everyone getting ill?

Norovirus, which is commonly referred to as the "winter vomiting bug," has been hitting the UK particularly hard this winter. The North West area is worst hit, with a daily average of 72 patients being admitted to hospital with the virus over the past two weeks. Statistics from NHS England show that hospitalizations due to norovirus have skyrocketed by 22% over the course of only one week, to an average of 1,160 patients per day. This is over twice the figure seen over the same period last year, when the norm was 509 patients per day.

Experts say that cases of norovirus normally increase throughout autumn and peak in winter, but this year, the rise came earlier and continues to increase. NHS officials point out that hospital staff are being put under huge pressure to deal with a large number of norovirus patients as well as other winter bugs.

Professor Sir Stephen Powis, the National Medical Director of NHS England, was worried about the rising infections, saying, "There is no let-up for hospital staff who are working tirelessly to treat more than a thousand patients each day with this horrible bug, on top of other winter viruses."

Meanwhile, on the other side of the Atlantic, the US is having its worst flu season in more than a decade. In early February, doctor visits and hospitalizations due to the flu reached a 15-year peak. Emergency rooms are clogged, and in most states, hospitals have imposed visitor limits to stem the spread of infections.

The Centers for Disease Control and Prevention (CDC) estimate that to date, at least 33 million individuals have contracted the flu, resulting in 430,000 hospitalizations and 19,000 deaths, of which 86 were children. The flu has resulted in a number of schools closing as a result of outbreaks, and cases continue to increase.

What's Making Everyone So Sick?

Experts say that a mix of factors is causing the high flu and norovirus cases this season. Post-pandemic socialization, lower immunity because of lower exposure in past years, and unstable vaccination rates might all be at play.

Regional Medical Director of NHS England North West, Dr. Michael Gregory, cautions that norovirus cases are still high and might keep spreading across hospitals and care homes. "We're looking to the half-term break as a break, but it's important that we all do our bit to prevent further spread," he said.

In the US, besides the flu, other viruses including COVID-19, RSV, and gastroenteritis infections are also reporting spikes. Figures from the CDC indicate that emergency room visits of RSV and COVID-19 have reduced but COVID-19 infections are high in most parts.

Identifying the Symptoms

Flu and norovirus have similar symptoms, but the way they infect the body differs.

Flu Symptoms:

  • Fever
  • Body aches
  • Chills
  • Cough
  • Sore throat
  • Fatigue
  • Stuffy nose
  • Norovirus Symptoms:
  • Sudden vomiting
  • Diarrhea
  • Stomach cramps
  • Nausea

Norovirus Symptoms:

Norovirus illnesses usually last between two and three days, compared to flu illnesses lasting a week or more. In both conditions, susceptible populations such as young children, the elderly, and those who are immunocompromised are more likely to have severe complications.

Norovirus, also called the "stomach flu," is a highly contagious infection of the gastrointestinal tract, not a respiratory virus. It transmits quickly from contaminated food and water and contact with contaminated surfaces, causing such symptoms as diarrhea, vomiting, nausea, and stomach pain.

What You Can Do to Stop Its Spread

Because of how fast both viruses spread, medical professionals highly recommend preventive actions.

For Norovirus:

  • Wash hands frequently with soap and warm water, especially after using the toilet or before preparing food.
  • Avoid visiting hospitals or care homes if experiencing symptoms.
  • Stay home for at least 48 hours after symptoms subside to prevent spreading the virus.

For Flu:

  • Get vaccinated annually to reduce the risk of severe illness.
  • Avoid close contact with sick individuals.
  • Practice good respiratory hygiene by covering coughs and sneezes.
  • Stay home at least 24 hours after the fever has passed without the use of medication.

Dr. Gregory again emphasized the need for hygiene, saying, "Good handwashing habits can significantly reduce the spread of norovirus. Soap and warm water remain the most effective way to kill the virus."

Treatment and Recovery

Most people can be treated for flu and norovirus at home with supportive therapy. Rest, hydration, and taking over-the-counter drugs to control symptoms are the road to recovery.

For flu, antiviral drugs like Tamiflu may prevent more severe symptoms from occurring if taken within 48 hours of symptom onset. The CDC advises high-risk groups to seek advice from their physicians regarding antiviral medication.

For norovirus, hydration is crucial, as diarrhea and vomiting have the potential to cause rapid dehydration, especially in children and the elderly.

Flu season in the US remains at its peak, and UK norovirus cases are still on the increase. Although some experts are optimistic that cases will decrease by spring, the unpredictability of viral outbreaks dictates that caution must be maintained.

Hospitals and healthcare facilities are calling on people to adhere to preventive measures in order to mitigate the burden on medical resources. Vaccination, hygiene, and self-isolation when ill continue to be the best lines of defense against such illnesses.

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