It's good to see all these cases are from people visiting China and not secondary cases from within the US. It suggests that the virus may not be contagious dur

It's good to see all these cases are from people visiting China and not secondary cases from within the US. It suggests that the virus may not be contagious during the long incubation period like Chickenpox. That will make a huge difference in the speed at which is spreads preventing the huge flood of cases that we would see otherwise.