The Science of Sustainability

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This electron micrograph image shows the structure of a single virus particle, or “virion,” of measles virus. Before 1963, about 3 to 4 million people got measles each year and an average of 450 people died, mostly children. After the vaccine became available, the number of measles cases dropped by 98%. (Image: CDC/ Cynthia S. Goldsmith; William Bellini, PhD)

measles virus microscope image

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