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.

The coronavirus that causes Covid-19 may spread through the lungs by turning previously resistant cells into targets for ...

Study: Reconstructing the early spatial spread of pandemic respiratory viruses in the United States. Image Credit: america365 / Shutterstock.com *Important notice: medRxiv publishes preliminary ...