Story highlights California agency: A child who went to Yosemite came down with the plague

Adult who died may have gotten plague from fleas on a dead animal, Colorado agency says

The victim is the first person in Pueblo County to get the plague since 2004

(CNN) Centuries after ravaging millions, the plague has come to modern-day Colorado -- leaving a devastated family behind, after their loved one succumbed to the disease.

The Pueblo City-County Health Department announced Wednesday that an adult had died from the plague, a disease that has a long and sordid history, albeit not one typically associated with modern times or developed countries like the United States.

The health department didn't detail who died, beyond that it was an adult.

The agency said in a press release that "the individual may have contracted the disease from fleas on a dead rodent or animal." It's the first such case of someone in Pueblo County contracting the plague since 2004.