At a CDC training session for clinicians headed to West Africa, a medical worker practices sanitizing hands after drawing blood from a mannequin portraying an Ebola patient. Brynn Anderson/AP hide caption

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A simulated patient at the University of Malaya makes use of different materials to mimic the look and feel of human tissue. /Courtesy of Vicknes Waran hide caption

toggle caption /Courtesy of Vicknes Waran