During the late 19th and early 20th centuries, camels wandered the Sonoran Desert. How they got there, and what happened to them, is an incredible story.

On March 3, 1855 ­— 170 years ago Monday — Congress appropriated funds for the Army to buy and train camels. It might have worked out, too ... were it not for a little military disruption ...

It is mainly transmitted to humans via dromedary camels and brings a range of clinical outcomes from asymptomatic to severe. Its 40% mortality rate is higher than that caused by severe acute ...