Spain implores people to keep up their vigilance against foolish acts that can spread Covid-19.

I think, however, that it behooves governments to jump vigorously on disease transmission, because once it gets away from you, it is hard to get in front of it again.

Here is what a vigorous attempt to flatten an outbreak of Covid-19 looks like.

If what's happening near you does not resemble this, your government is doing a bad job.

In theory it could be advantageous to tune the response and shut down only the minimum necessary in a given situation. But we don't have enough experience with Covid-19 to know what that minimum is.