Are there "awareness" related mirror neurons or processes in the brain that get activated by awareness?
Mirror neurons are actually quite a contentious area in cogsci. The debate is most certainly not settled as to what role they play, and whether they even exist, in humans. In short though, my argument would be that there are no specific awareness related mirror neurons in the brain because mirror neurons themselves are awareness. Again, this is an extremely contentious issue in cogsci, and there is no one answer widely accepted at the moment -- I'll just try to explain and justify my thoughts.

It's important in anything that's being discussed to have a working definition of the matter at hand. Personally, I would disagree with your definition of naming them "emotion infectors", instead opting to assume that mirror neurons are very specialised cells allowing for the reenactment of sensory-motor information (Rizzolatti et al.).

Gibson gave us a pretty neat applied example of this in the form of affordances. These are action possibilities possessed by items, but perceived by an agent (see Norman's review for a neat explanation as to why this changed) -- in short, a rock doesn't want us to throw it, but a human might want to throw a rock. Additionally, a mouse might see the same rock and, being unable to lift it and throw it, decide instead to hide behind it from predators. At the same time, a savvy cat may suss out what's actually going on... What does this mean for mirror neurons? Specifically that this network of cells allow us to understand actions, and create new ones, by parasitizing upon motoric and sensory systems. Essentially, our experience of the world is bound by our bodily constraints.

So what does this mean for our experience of abstract concepts? Domains like love, time, depression, and even awareness aren't physical entities, but metaphysical ones. These are conceptually understood (Lakoff). Time flies, we are down in the dumps when depressed and -- the most cheesy of all -- love hurts. Time doesn't actually fly, we don't shrink when we're depressed and love doesn't actually physically hurt, but we scaffold what is concrete (i.e. sensory-motor information) to the abstract in order to understand it (Veale &amp; Keane).

So, I don't believe that a mirror neuron network would exist for a process like awareness, because the mirror neuron network itself is awareness. It's what provides us with a specific ability to understand the environment, to understand actions and, perhaps most importantly, understand ourselves.