I think, the thing is, nobody knows the number. The numbers we've seen are consistent with a very, very wide range from an epidemic that will kill two to four million people on one end and an epidemic that will kill 50,000 to 100,000 people on the other. That's an incredibly broad range and the policies you do to avoid two to four million deaths are very, very different than the policies you do to avoid 50,000 to 100,000 deaths.