Ancient Vikings’ teeth are reservoirs of ‘killer virus’ – Naked Science

Smallpox has been around since the Viking Age. But its pathogens were markedly different from the modern species of this virus. Smallpox has plagued humanity for at least 1200 years, and the lethality of this pathogen has increased over time. Scientists came to such conclusions by sequencing the genomes of smallpox viruses found in the … Read more