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Coloradans love their dogs. So we had to investigate the mysterious illness affecting dogs here and in more than a dozen other states. Dig in with us today.

Most parts of the Mountain West didn’t see as many days with mosquitoes last year. But when it comes to diseases, the public might not be out of the woods yet.

As chronic wasting disease and avian influenza spread among wildlife and livestock in the Mountain West, the U.S. Department of Agriculture is targeting new funding at efforts to keep these and other deadly diseases in check.

As Colorado's big-game rifle season approaches, state wildlife officials are ramping up monitoring of chronic wasting disease, which continues to spread in deer and elk populations around the state.

Scientists say accelerating deforestation and development may increase the risk of pandemic diseases. The current economic crisis may also make that trend worse if more people cut down trees for fuel.

During the COVID-19 pandemic, masks are having a bit of a moment. They’ve gone from functional to fashionable to controversial, all in the span of about…

Researchers say the fungus behind a disease called Valley fever may spread in the Mountain West as rain and temperature patterns change.

Newly released data from the Colorado Department of Public Health and Environment shows a sustained increase in the number of syphilis cases in newborn…

A new study out of Colorado State University shows that disease-bearing ticks are more widespread than previously thought, but the Mountain West is...