Have you ever wondered why you have to get a flu shot every year, but some vaccines are one-and-done? It all has to do with how and how fast viruses evolve - and that depends on mutation rates.

Researchers have developed a new technology called tARC-seq that revealed a genetic mechanism affecting SARS-CoV-2 divergence and enabled the team to calculate SARS-CoV-2's mutation rate. Using ...

When HIV jumped from chimpanzees to humans sometime in the early 1900s, it crossed a gulf spanning several million years of evolution. But tobacco ringspot virus, scientists announced last week, has ...