You say these questions are rhetorical. However, they are great questions. Being the virus can stay housed within the body for up to 2 weeks, there is a great chance that a lot of these new cases were either recently acquired, or they had light symptoms, becoming worse over time. With the new cases, they could have gotten from either family or from someone else in a center. Whether they were a dissident before or not is a great point that I did not think of, which could be the reason they had gone to a quarantine center, to begin with, so that they would have a "natural" death. This brings up another point, that this virus could either be entirely man-made or is something derived from a virus for another animal.

Either way, very scary thoughts.