The pathology department at the University of Hong Kong is one of the few places on Earth where you can stare death in the face. In the department's lab, a transmission electron microscope capable of magnifying an image up to 150,000 times is being used to view a never-before-seen virus that researchers now believe has killed at least 55 people worldwide and infected more than 1,500. Illuminated on a green phosphorescent screen by a beam of electrons and viewed through an optical device that resembles an upside-down periscope, the virus—this particular specimen had...
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