
Sébastien Calvignac-Spencer
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Sébastien Calvignac-Spencer is an evolutionary biologist at the Helmholtz Institute for One Health in Germany. He has commented on the implications of recent research regarding smallpox, affirming its crucial role in the demographic collapse of Indigenous populations in the Americas during European colonization.
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Recent news mentions
Sébastien Calvignac-Spencer, an evolutionary biologist at the Helmholtz Institute for One Health in Germany, said the new study dispels any doubt that smallpox played a role in the devastation of the Americas.
‘This is very strange’: Ancient smallpox may have been less deadlyThe New Zealand Herald – country’s largest newspaper, est. 1863·
New Zealand· 2026-08-11



