Colorado health officials warn of a toxic blue algae that has been spotted in waters around the state. I'm a heart surgeon ...

Colorado Department of Public Health and Environment tells residents and visitors to "when in doubt, stay out" when it ...

Colorado just recorded its first human death from West Nile virus this season. Now, doctors are reminding the public that some may be more at risk of getting really sick from it.

A smoke map from NOAA shows Colorado will be almost entirely covered with smoke on Thursday as wildfires burn thousands of ...

The Colorado Department of Public Health and Environment and Boulder County Public Health have confirmed the first West Nile ...

As of Monday afternoon, 348 people were hospitalized in Colorado with confirmed COVID-19, down from 369 on Friday.

Colorado public health officials issued an air quality alert through Thursday, warning people across the Front Range that ozone levels are expected to rise to unhealthy levels for sensitive groups.

PUEBLO — The Colorado Department of Public Health and Environment sent a COVID-19 phone alert Sunday morning to millions of Coloradans who live in Level Red counties.

The Colorado Department of Public Health and Environment has suspended a second chemist and stopped water testing at the state laboratory amid a state investigation into manipulated data. State ...

The Colorado Department of Public Health issued an Action Day Alert Wednesday at 4 p.m. that is expected to stay in effect until at least 4 p.m. on Thursday for smoke that will make visibility ...