Good info. I don't think there's any doubt that it facilitated and accelerated the spread. The virus would've gotten there anyway but it could've been be much more muted had it not been for that match. My skepticism is that all or even a majority of cases in Italy could be traced back to that particular soccer match. I'd bet plenty of them could be traced to people traveling out of country to China or anywhere else the virus has become active since then and then had normal everyday interactions after that which spread it.
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