The near doubling of coronavirus death predictions in a closely followed model this week underscores a frustrating reality for officials weighing how and when to reopen society: Many basic facts about the new coronavirus remain unknown. Epidemiologists have created many computer models to predict surge capacity in the health-care system and guide policy-making. These seek to predict how many people might be infected, how many will die, and when and how transmission might slow or speed up.

Source: Wall Street Journal May 05, 2020 22:52 UTC