ICYMI: Vikings suffered from persistent intestinal parasites, which appear to have caused genetic changes making their descendants more vulnerable to emphysema.

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ICYMI: Vikings suffered from persistent intestinal parasites, which appear to have caused genetic changes making their descendants more vulnerable to emphysema.

http://www.archaeology.org/issues/215-1605/trenches/4341-trenches-scandinavia-viking-diseases

(Wikimedia Commons, Joel Mills)

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