Captured in New Mexico in 2003, this photograph depicted a scene commonly encountered on the state’s plains. Here, you can see a number of prairie dogs, which are members of the genus Cynomys, frolicking around their safe subterranean burrows. In June 2003, monkeypox was reported among several people in the United States. Most of these people became ill after coming into contact with pet prairie dogs that were sick with the virus. This was the first outbreak of monkeypox in the United States.