The Nucleic Acid and the Virion

The virus itself, if you just want to look at what that little tiny particle is, uh, it's a virion. And they can infect just about any living thing. As a matter of fact, any living thing could be theoretically infected by a virus. Like a bacteria can get a viral infection. Seaweed can get viruses. Donkeys. The whole gamut from seaweed to donkeys.