While at the same time it has lowered mine. The smart thing to do is add events like it, but never at the expense of others who wish not to take part in them. That way you can please both groups. See the logic in that?
I don't get it.
If you are leveling, you shouldn't have problems.
If you only do warzones, it MAY happen that if you hit someone infected, and he dies near you, you get infected, but it's rare.
If you stay in the fleet / do PVE, well, just don't stand near the pvp daily quests terminal, or really crowded areas.
One of the things that makes the event fun, is the possibility of infect other people (and let's face it, it's not a big deal anyway)