Potato spindle tuber disease wasn't a life-or-death situation, but it led to the discovery of viroids: infectious, replicating bits of RNA

Delve into the microscopic world of viruses, learning about their structure, how they differ from living organisms, and their methods of infecting host cells. Understand the components of a virus, including nucleic acids (DNA or RNA),...

This video is a lecture on the life cycle of viruses. The speaker starts by explaining that viruses are not true organisms because they are made up of different components and cannot replicate on their own. The video breaks down the...

There are two main types of pathogens we will be focusing on in this series. The first was bacteria, and we just wrapped up a good amount of information on those. The next is viruses. These little things are much tinier than bacteria,...

Understanding Viruses - Viruses/Immunity Set - Part 1. This clip offers a simplified look at how viruses are structured and how they infect living host cells.