Some are, Cancer, Parkinsons, Fevers etc, etc.
That’s a ridiculous question. It’s different between patients. Some become more depressed on drugs. I would say false, it’s very rare drugs fix depressions. That’s like saying ducktape permanently fixed your car.
The right answer is a vector!
I’m glad we have some kindness left in this world I hope you are staying safe during these times as well, remember wash your hands