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Respiratory Illness Monitoring
The young adult female patient sits on the hospital bed and leans forward to look at the test results on the clipboard held by the mid adult female doctor.

Respiratory Illness Monitoring

Respiratory Illness Dashboard

Tracking local respiratory illness trends helps healthcare facilities and the public stay informed about local seasonal respiratory disease activity for COVID-19, influenza, and RSV.

When someone goes to a participating Boulder County emergency department with a chief complaint of flu-like symptoms (e.g., fever, cough, sore throat, strep throat, or upper respiratory) and diagnosis codes (ICD-10 codes J09, J10, J11), their visit meets the CDC case definition for influenza-like illness (ILI).

Influenza emergency department (ED) visits are calculated by taking the total ED visits and dividing it by the number of reported influenza ED visits. The same is done for respiratory syncytial virus (RSV).

Both graphs use the Morbidity and Mortality Weekly Report (MMWR). The beginning of these graphs roughly correlates to the start of respiratory illness season in early October.

Dashboard Updates

The data below shows the current trends in respiratory illnesses at emergency departments in Boulder County. This dashboard is updated once a week on Friday before 5 p.m.


Vaccines are the most effective way to protect against flu, COVID, and RSV.

Find an immunization clinic near you.

Vaccines for Adults

During the flu season, adults can receive the vaccine at many locations throughout the county, including most pharmacies. Call the Colorado Department of Public Health & Environment at CO HELP at 1-877-462-2911 for locations, dates and times, costs, ages immunized, types of vaccines provided, types of insurance accepted, and if an appointment is required.

Vaccines for Children

Boulder County Public Health (BCPH) Immunization Clinics offer vaccines for clients who meet the following qualifications:

Learn More about Flu

Contact Us

Immunization Program

Boulder: 303-441-7500
Longmont: 303-678-6166
Submit a question


3450 Broadway
Map and Directions
Hours: 8 a.m. to 4:30 p.m.


515 Coffman St., Second Floor
Map and Directions
Hours: 8 a.m. to 4:30 p.m.

Boulder County Public Health website