Surely all current cases have experienced roughly the same number of viral generations? A death outside Hubei today will be caused by a virus with roughly the

Surely all current cases have experienced roughly the same number of viral generations? A death outside Hubei today will be caused by a virus with roughly the same number of generations as a death inside Hubei. Yet a smaller fraction seems to be dying outside Hubei. Other possible explanations are that the healthcare system in Hubei is overwhelmed, so more patients die, or alternatively they're just too busy to accurately report recoveries.