In World War Z, change generally comes in two flavors: tasty change, nasty change, and the occasional swirled combination of both. But the novel's consideration of change goes beyond labeling one type of change bad and another good. The real concern here is how people respond to change. Israel understands change is inevitable and keeps an eye out for it, preparing the best they can. As a result, they weather the zombie apocalypse better than others. Countries like Russia and America want to maintain the status quo, trying to fix the problem while also keep it hidden. This response makes an already nasty change worse. So, while change can be either positive or negative, the degree relies largely on the way we respond to it.