ELI5 Virus vs Bacteria - why getting sick from viruses is different to bacterial diseases

What’s the difference between getting sick from a bacteria vs a virus? What are RNA viruses, and why are they different from DNA viruses? Why do RNA based viruses mutate faster than DNA based virus? ... We explain like i'm five! Thank you to the r/explainlikeimfive community as always and in particular the following users whose questions and comments formed the basis of this discussion: pantieslatina, rhynod, i3igguy, wrsaunders, cstwinkletoes & senegalo To the ELI5 community that has supported us so far, thanks for all your feedback and comments. Join us on Twitter: https://www.twitter.com/eli5ThePodcast/ or send us an e-mail: [email protected]