It's hard. Few of the later measures taken against coronavirus are grounded in very strong scientific evidence. It isn't easy conducting randomized trails in an

It's hard. Few of the later measures taken against coronavirus are grounded in very strong scientific evidence. It isn't easy conducting randomized trails in an ongoing pandemic. What you see practiced in hospital and intensive care units is what works. The rest have spotty evidence at best. Hopefully something good will come out of this and we will see more research on public health. Look at the recent Danish on general public face mask use as a good example.