Are there any species of life that don't or can't get sick?

People, dogs, cats, birds, trees, bugs, all kinds of things can get sick, even die from it. But do like microbes get sick? What about waterbears?

Cowboy2021-02-22T16:51:44Z

There are more viruses attacking bacteria than any other organism - if it wasn't for these viruses bacteria would swamp the globe......

Steve H2021-02-20T09:15:45Z

It depends on your definition of getting sick. Generally we refer to sickness or disease when a smaller lifeform invades, is a hostile parasite or mutates our body. However there are many microbes which attack others. There a even viruses which specialise in attacking bacteria, becoming a whole new combined pathogen.

To be honest I'm not sure about waterbears / tardigrades, so can't really comment on that very resilient species. I would be astounded if there isn't have a pathogen which exploits that creature though.