Viking Age Smallpox Complicates Story of Viral Evolution

An extinct version of the smallpox virus dating to 1,400 years ago prompts speculation about viruses becoming more lethal over time.

Source: NYT Health - July 23, 2020 Category: Consumer Health News Authors: James Gorman Tags: Smallpox Viruses Coronavirus (2019-nCoV) Evolution (Biology) Immune System DNA (Deoxyribonucleic Acid) Cambridge University Science (Journal) Genetics and Heredity your-feed-science Source Type: news