ROCKY MOUNTAIN LABORATORIES, NATIONAL INSTITUTES OF HEALTH / SCIENCE PHOTO LIBRARY ROCKY MOUNTAIN LABORATORIES, NATIONAL INSTITUTES OF HEALTH / SCIENCE PHOTO LIBRARY
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Yellow fever vaccine production. Research technician in the 1940s transferring a yellow fever vaccine from a storage bottle into a dispensing flask. Yellow fever is a tropical viral infection transmitted by mosquito bite. It causes fever, nausea, and headaches. A toxic form of the disease can lead to jaundice, internal bleeding, and death. An effective vaccine was developed in the late 1930s. Photographed in 1940 at the Yellow Fever Unit in the Rocky Mountain Laboratory, Hamilton, Montana, USA.
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