Larimer County Respiratory Disease Update - 02/04/2026

Respiratory illness activity in Larimer County remains very low, with only four hospitalizations reported for the week of February 1. No COVID-19 hospitalizations were reported, while influenza and RSV accounted for all recent serious respiratory cases.

So far this 2025–26 season, influenza continues to be the main driver of respiratory hospitalizations, especially among adults 65 and older. Emergency department visits for flu, COVID-19, and RSV are all at low levels, and early February data show only a small number of hospitalizations among seniors.

Key numbers from the latest report (week of Feb. 1, 2026):

• 0 COVID-19 hospitalizations this week (33 so far this season)
• 3 influenza hospitalizations this week (192 so far this season)
• 1 RSV hospitalization this week (22 so far this season)
• 1.71% of emergency department visits were for flu-like illness on Feb. 4
• Among seniors (65+), February so far has seen 2 flu hospitalizations and 0 COVID-19 or RSV hospitalizations

All data is provided by the Larimer County Department of Health and Environment