A northeast Arizona man has contracted bubonic plague and health agencies are urging Four Corners residents to help prevent the spread of the disease.

The Navajo Nation and the U.S. Department of Health and Human Services on Friday warned of a new possible outbreak of plague. The Apache County, Ariz., man who contracted the disease began showing symptoms in late September, the Navajo Nation said, including a 103-degree fever, chills, diarrhea and groin tenderness. He has responded well to treatment, the nation said.

The nation also said plague likely killed a number of prairie dogs east of Flagstaff, Ariz. There have been no recent reports of plague cases on the Utah side of the Four Corners.

Humans can contract plague by touching bodily fluids of infected animals or after being bitten by fleas that have contracted it from infected rodents.

In 2006, the disease was found in rodents in Mesa Verde National Park and Natural Bridges National Monument. No humans were infected, but Natural Bridges closed a campground until it determined there was no threat. Both venues were fully open Monday.