Best that can be done are quarantines, but they're crushing the economy. Many outlets are reporting that a vaccine is at least a year out. So all we can do is slow this down and stagger cases. The Harvard epidemiologist who projected 40-70% of the world's adult population ultimately contracting covid was probably right.
At some point, governments will likely realize that they need to send younger segments of the population back to work (a la the UK), respecting the medical system's capacity, or risk triggering a depression. The economy was already systemically vulnerable for a number of reasons and this situation threatens to push it over the edge.
It's possible the market has not yet fully priced in extended quarantines or the likelihood of much of China and most other important economies experiencing a significant disease burden. The paradox is that the quarantines have slowed down the progression but are not an economically sustainable tool to fight this, so the numbers being reported are artificially deflated. On the other side, you have the medical system's limited capacity. One way or the other, we'll have to face the music on this.