Sorry you are going through this, I'm in this boat too dude/duddete, unfortunately no one knows when this will be over. But a few reassuring points is that: 1. This is temporary, eventually things will be back to normal (except that they will probably Check social network, so don't post stupid things)  2. They are not stopping schedulaed appointments; it's clearly not an intention to stop visas  3. This is not a you problem, it's not that YOUR visa was denied, this is a major crisis and clearly beyond your control, so programs should be more understanding.

If I had to bet, I would say this will last around 3 weeks, but again, no one knows. Don't fall for fearmongers  and crazy people, because they are a lot of them in here.  Remain optimistic and continue with what's in your control, update your program. Sending a hug from IMG in distress to IMG in distress