Does Bacteria and Virus have anything in common?

I already know the differences between the both, I just want to know if they have any similarities.

Does Bacteria and Virus have anything in common?
They're both microscopic multi-celled organisms that can only survive off of a foreign body!
Reply:Yes they both infect other bodies.
Reply:They both can't be seen by the human eye. They both usually trigger the body's immune system. They both often cause disease, just not the same ones. They are both unicellular organisms.
Reply:Um I think both can cause u to become sick
Reply:Isn't a virus composed of bacteria? I mean, if you get sick...you've contracted some form of bacteria...hence the word "virus"... I could be wrong.
Reply:Well bactiria doesn't have a nucleus and a virus does so I think a virus is more serious than bacteria.
Reply:They both cause sickness.
Reply:They are both microscopic and can be harmful to the body