We first brought you the story of a deadly plague diagnosis in Flagstaff earlier this week. A patient arrived at the emergency room and lost their life to the pneumonic plague. Meanwhile, health officials are still searching for the source.

The resident died from pneumonic plague, the first such death in Coconino County, Ariz., since 2007, the county said.

Officials said the resident died from pneumonic plague, a severe lung infection. The risk to the public remains low.