As the coronavirus pandemic spreads across the globe, the term "virus" gets a lot of airplay. But what exactly are viruses, and how do they spread? Here's a primer, with a hat tip to Stanford virologist Jan Carette, PhD.
https://scopeblog.stanford.edu/2020/04/02/whats-a-virus-anyway-part-1-the-bare-bones-basics/
https://scopeblog.stanford.edu/2020/04/02/whats-a-virus-anyway-part-1-the-bare-bones-basics/