Flu Season Hits Children Hard with Early Surge and Severe Symptoms

Emergency Departments Overwhelmed by Young Patients

Children's hospitals across the United States are seeing an unprecedented early surge of flu cases, with emergency departments packed with young patients suffering from unusually severe symptoms. "I don't think I ever remember seeing it this severe, this soon," said Dr. Suchitra Rao, an infectious disease specialist at Children's Hospital Colorado in Aurora. "Our emergency department is full of kids coming in with the flu."

Doctors across the country say flu season has arrived earlier than usual and is hitting people — mainly kids, so far — especially hard. The situation has become so concerning that pediatricians are describing scenes they haven't witnessed in years. "Flu, flu, flu. So much flu," said Dr. Debra Langlois, a pediatrician at University of Michigan Health C.S. Mott Children's Hospital in Ann Arbor. "We are inundated."

Colorado is one of the nation's current hot spots of flu activity, according to the latest report from the Centers for Disease Control and Prevention. Michigan, too, is experiencing a marked increase in cases. What makes this season particularly alarming is both the timing and intensity of symptoms affecting children who haven't received their flu vaccinations.

Dangerous Symptoms and Rising Death Toll

This year's flu is presenting with particularly severe symptoms in children. The majority of children being seen with flu have high fevers, of 103 or 104 degrees Fahrenheit, for up to a week. "This year, it's really the prolonged fevers, dehydration and poor appetite that seem to be getting the best of kids," said Dr. Kali Broussard, a pediatric infectious diseases specialist in Louisiana.

Beyond the typical symptoms, doctors are reporting concerning neurological effects. Some children are experiencing severe headaches and dizziness, with one doctor's 7-year-old daughter describing the feeling as "I feel dizzy, like I'm spinning when I'm trying to walk." Some kids may also experience gastrointestinal issues like vomiting and diarrhea, though those symptoms could also arise because of a secondary virus.

The human cost is mounting rapidly. A total of 11 influenza-associated pediatric deaths occurring during the 2024-2025 season have been reported to CDC as of late December, with experts warning the numbers could climb significantly higher as the season progresses.

Treatment Challenges and Holiday Concerns

The surge in severe cases is straining both medical resources and families. Pharmacies say demand for the antiviral drug Tamiflu is also increasing, with a Walgreens spokesperson reporting "very high demand" for the medication nationwide. When given within the first 24 hours or so of flu symptoms, the drug has been shown to make people feel better about a day earlier than expected.

Medical experts are particularly worried about the timing coinciding with holiday gatherings. Doctors worry that kids who are sick with flu now could spread it to grandparents and other older adults over the holidays. The advice from healthcare professionals is clear but difficult for families to follow. "At the risk of being a Grinch, if you have the flu and you actively have fevers, then you should stay home. Don't go to family gatherings," said Dr. Bernard Camins, medical director for infection prevention for Mount Sinai Health System in New York City.

Children who have "persistent" fevers lasting two to three days should be seen by a doctor. The most effective protection remains vaccination, though many of the severely ill children haven't received their flu shots. The flu shot is helping keep vaccinated children out of the hospital , underscoring the importance of immunization even as the season intensifies.

Looking Ahead: A Season Unlike Others

What makes this flu season particularly challenging is the dominant strain circulating. The "super flu" strain, or subclade K, is spreading everywhere that influenza is, with lab tests showing that 89.8% of 216 influenza A viruses collected since Sept. 28 were positive for the subclade K. This variant appears to be evading some of the population's existing immunity, making more people susceptible to infection.

The geographic spread continues to expand rapidly. Seasonal influenza activity continues to increase and is elevated across most of the country according to the latest CDC surveillance data. "By the end of the flu season, in the next 2 to 3 months, every state will experience high amounts of influenza activity," predicted Johns Hopkins expert Andrew Pekosz.

While the current situation is concerning, health officials emphasize that vaccination remains the best protection available. The shots may not prevent all symptoms but they can prevent many infections from becoming severe, and preliminary analysis suggests this year's vaccine maintains effectiveness against the circulating strains.