Colorado Among Top States for Severe 2025-26 Flu Season, Doctor Explains Why

Colorado is currently experiencing an unprecedented flu season, with significant health implications for its residents. During the week ending December 27, 2025, the state recorded 831 hospitalizations due to influenza, marking the highest number in two decades of tracking. Although hospitalizations decreased to 737 the following week, the numbers still surpass those from previous years.

Flu Activity in Colorado

According to the Centers for Disease Control and Prevention (CDC), Colorado is among the top five states in terms of flu activity. This year, doctor’s visits for flu-like illnesses have reached a 30-year high.

Impact on Emergency Services

The emergency departments in Colorado are under increased strain due to a surge in flu-related visits. A physician from the University of Colorado noted that this year’s flu season stands out due to its rapid spread and severity. Symptoms such as vomiting and diarrhea are contributing to the discomfort, prompting many healthy individuals to seek emergency care.

• Increased visits from healthy individuals exhibiting severe flu symptoms.
• Patients with pre-existing conditions facing complications from influenza.
• Emergency departments experiencing record numbers of daily visits, particularly over the holidays.

Vulnerable Populations and Symptoms

While children aged 5 to 17 are experiencing the highest emergency department visits, their overall cases tend to be milder. However, there have been 17 pediatric deaths associated with the flu nationwide, which is unusual for this time of year.

• Highest pediatric deaths recorded in the United States at eight in one week alone.
• Young adults in their twenties are suffering severe symptoms, but fewer complications are reported.
• Older adults and individuals with comorbidities are experiencing the most significant health impacts.

Recommendations for Flu Prevention

Experts continue to recommend getting the flu shot, especially for those with pre-existing conditions. Vaccination reduces the severity of illness and the likelihood of hospitalization.

Symptoms requiring emergency care include:

• Difficulties in breathing
• Severe chest pain
• Abnormal headaches

If experiencing mild symptoms, it’s typical to manage care at home with rest. Testing is often unnecessary for healthy individuals unless they are part of a community surveillance program.

Community Health Monitoring

In Colorado, wastewater surveillance is becoming an essential method for monitoring flu prevalence. This approach allows health officials to gauge community infection levels without requiring comprehensive testing in hospitals.

Current data from wastewater samples indicate high levels of influenza in the community, while RSV and COVID-19 levels remain low. This method is a practical way to inform public health decisions and interventions.

In summary, the current flu season in Colorado is marked by record-high hospitalizations and an increased strain on healthcare services. Emphasizing vaccination and careful monitoring of symptoms is crucial for managing health during this challenging time.