Almost no country took it seriously enough. There is an exception, which we'll come to in a moment...
Sure, at the beginning. But it's not the same if they didn't take it seriously after China, or after China, Italy, Spain...
It's somewhat understandable that Italy didn't take it seriously after receiving cryptic reports from China. But WTF the rest of the world didn't take it seriously after Italy?
How stupid you must be to think that this shitty virus will need a visa for your country...