Source: Public Domain (wikipedia.org)
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3D Model of an Influenza Virus. The Hemagglutinin (HA) and Neuraminidase (NA) proteins are shown on the surface, and are used to describe different types of Influenza viruses
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Chart showing the "W Curve" of Spanish Flu mortality, which disproportionally affected healthy young adults
 Source: Public Domain |
Chart showing the three pandemic waves in 1918-1919 through weekly combined influenza and pneumonia mortality, United Kingdom
 Source: Public Domain CDC |
