So the actual plague? Does the rest of the world have to worry?
There are cases of Bubonic/Pneumonic plague every year. Actual outbreaks are usually in Africa, though, so it doesn't make many headlines. There were thousands of confirmed cases during a large outbreak in Madagascar a few years ago but most people have no idea.
In this case, unless it's announced that carriers of the Pneumonic plague have broken quarantine, then it sounds like everything is under control. As it's treatable with modern antibiotics, it's not nearly as big a concern to the civilized world as it once was.