1.0Secrets of the Deadhttps://www.pbs.org/wnet/secretschie witthttps://www.pbs.org/wnet/secrets/author/chie-witt/Killer Flu ~ Background | Secrets of the Dead | PBSrich600338<blockquote class="wp-embedded-content" data-secret="4DMDKSvqYn"><a href="https://www.pbs.org/wnet/secrets/the-origins-of-influenza/221/"> Background</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.pbs.org/wnet/secrets/the-origins-of-influenza/221/embed/#?secret=4DMDKSvqYn" width="600" height="338" title="“ Background” — Secrets of the Dead" data-secret="4DMDKSvqYn" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
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https://www.pbs.org/wnet/secrets/files/2009/05/fluorigins-1024x576.png1024576Over the centuries, humans have endured many influenza pandemics. Descriptions of the disease in Europe date back to 1100 A.D., and sporadic, isolated outbreaks have likely been occurring for many thousands of years.