I liked the idea of how this decease started to spread, but i was expecting more of the book. The author did a pretty good job showing this side of humans that is selfish, narcissistic, deceitful and above all that will do anything to survive. The three main character all have distinct personalities and they all are very complex. But the ending made me feel a little uneasy, maybe the author is planning another book but, if she isn't, then there was some questions left without answers. I want to read again to see if I can understand better the whole concept and to understand better all the characters (by the way Reese is definitely my favorite!!)