ROCKY MOUNTAIN LABORATORIES, NATIONAL INSTITUTES OF HEALTH / SCIENCE PHOTO LIBRARY ROCKY MOUNTAIN LABORATORIES, NATIONAL INSTITUTES OF HEALTH / SCIENCE PHOTO LIBRARY
Rocky Mountain spotted fever patient, 1930s. Torso and arm of a patient infected with Rocky Mountain spotted fever near Crary, Colorado, USA. The patient's skin is covered in the rash that is characteristic of this disease. The disease is caused by the bacterium Rickettsia rickettsii, which is spread to humans through the bite of certain ticks. Without the correct treatment, the disease can be fatal. This patient died from the disease. Photographed in 1939 as part of work by the Rocky Mountain Laboratory, Hamilton, Montana, USA.
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