The worst is behind China because they've instituted heavy lockdown measures beyond what would be acceptable in the US, and enacted emergency measures like cons

The worst is behind China because they've instituted heavy lockdown measures beyond what would be acceptable in the US, and enacted emergency measures like constructing temporary hospitals and isolation centres. They're still under lockdown - Beijing for instance is mulling a mandatory 14-day quarantine for anyone entering the city. So far, only a handful of other countries, mostly Asian ones, have had success slowing down this virus. Most of Europe and North America is on a steady exponential curve upwards with no sign of slowing down yet. Germany has already clearly said that they expect 70-80% of the population to be infected eventually - 60M people, of whom ~2% or 1.2M will likely die. Scale that up to the USA. Without a vaccine, the only way this virus peters out is through eventual herd immunity, which will require a sizeable fraction of the population to catch it.