The Mutant Genes Behind the Black Death
Only a few genetic changes were enough to change an ordinary stomach bug into the bacteria responsible for the plague.
How Mutant Viral Swarms Spread Disease
A new understanding of viral swarms is helping researchers predict how viruses will evolve and where disease is likely to spread.
Hints of Life’s Start Found in a Giant Virus
Newly discovered specimens support a more ancient origin for viruses, perhaps all the way back to the origins of life.
Evolving With a Little Help From Our Friends
A new theory suggests that cooperation between a host and its microbes may be a significant evolutionary force.