Viral sequences from Chilean mummies confirm smallpox was introduced to the Americas from Europe. Plus, the month’s best science images and the changing patterns of Europe’s wildfires.

Viral sequences from Chilean mummies confirm smallpox was introduced to the Americas from Europe. Plus, the month’s best science images and the changing patterns of Europe’s…

Analysis of DNA from Chilean mummies has revealed the earliest known genome of the smallpox virus recovered from the Americas.