You have heard correctly. They are looking at all subsections of individuals who have had contact with the afflicted to determine if the bacteria has spread. But never worry; we are all so very powerful and admirable and immortal that such small things, they are insulting for us to think on. It is by far better to waste time harassing the Medical staff and dodging needles to make sure they know how untouchable we are.
Bah, I am clearly in a terrible mood. I apologise.