By March 8th, they had been 3k deaths in Wuhan. It was blatantly obvious by that time that Covid-19 was dangerous, and also that the testing situation was such

By March 8th, they had been 3k deaths in Wuhan. It was blatantly obvious by that time that Covid-19 was dangerous, and also that the testing situation was such that no one knew how widespread the virus was. Since the strict Spanish lockdown started just 6 days later, it seems clear that not halting the march was a big mistake, although it seems unclear how many were actually infected there.