Colorado is battling an unprecedented flu outbreak, leaving residents and healthcare professionals reeling. But what's behind this intense flu season, and why is it causing such chaos?
A Flu Season Like No Other:
Colorado is experiencing a flu season that's breaking records. In the week of December 27, 2025, a staggering 831 hospitalizations were reported due to influenza, the highest since the state began tracking flu cases 20 years ago. And the numbers didn't drop significantly in the following week, indicating a severe outbreak.
According to the CDC's weekly report, Colorado is among the top five states with the most flu activity, and doctor's visits for flu-like illnesses are at a 30-year high. This is a concerning trend, especially for emergency room physicians like myself, who have witnessed the impact firsthand.
As an emergency medicine specialist with 18 years of experience, I can attest that this flu season is exceptionally challenging. Our emergency department has seen an unprecedented number of visits, and the flu is likely a significant contributor.
The Super Flu: A Closer Look:
This year's flu season is particularly harsh due to the sheer number of people seeking emergency care. The flu arrived swiftly and is highly contagious, with symptoms more severe than in recent years. The so-called 'super flu' causes not only fever and body aches but also vomiting and diarrhea, making people feel much worse than with respiratory symptoms alone.
But here's where it gets controversial: while past flu seasons were challenging due to multiple outbreaks, this season is different. We're seeing a high volume of emergency visits specifically from the flu, with two distinct groups of patients.
The first group consists of healthy individuals who experience severe symptoms, including nausea, vomiting, and diarrhea, leading them to seek emergency care. The second group includes those with severe flu manifestations or underlying health conditions like asthma or heart disease, which can be exacerbated by the flu, often requiring hospitalization.
Age and Flu Severity:
The impact of the flu is not evenly distributed across age groups. In the U.S., emergency departments are seeing the highest number of visits from children aged 5 to 17. While children generally have milder cases, there have been 17 pediatric deaths from influenza this season, with eight occurring in the week ending January 3, which is unusual.
Young adults in their 20s are also feeling the brunt of this flu, but complications and hospitalizations are less common in this group. The primary concern is for individuals with medical problems or underlying conditions, such as asthma, diabetes, obesity, and heart disease, or those who are immune-compromised.
These individuals are at higher risk of experiencing a cascade of worsening health issues when they contract the flu, which is a stark contrast to COVID-19, where healthy individuals were severely affected.
Flu Shots and Emergency Care:
Despite the severity of this flu season, getting a flu shot is still recommended, especially for those with medical problems. An annual, updated flu vaccine can help reduce the severity of the disease, even if it doesn't provide complete protection. It's crucial to take every measure to minimize symptoms and the risk of hospitalization, especially for those with underlying conditions.
When should you consider visiting an emergency room? If you experience difficulty breathing, severe chest pain, or abnormal headaches, seek medical care immediately. We're here to help, 365 days a year. For mild symptoms like headaches, body aches, fever, cough, and congestion, rest is often the best medicine.
Testing and Treatment:
Many patients want to know which virus they have, but testing is not always necessary, especially for young, healthy individuals. Colorado's infectious disease trackers emphasize that wastewater surveillance is the most effective way to identify infectious diseases in the community. This method is reliable because it captures data from everyone, including those who don't seek medical care.
Currently, wastewater samples in Colorado show extremely high levels of the flu and low levels of RSV and COVID-19. While testing is essential for understanding disease prevalence, it can strain hospital resources and increase costs. For those with manageable symptoms, the advice remains the same: stay home, practice good hygiene, and consider wearing a mask in public.
And this is the part most people miss: while the flu shot may not prevent every case, it can significantly reduce the severity of the illness. So, even in the midst of a challenging flu season, taking preventive measures and seeking appropriate care can make a difference.
