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It seems Italy simply got unlucky. Most of the instances of covid in Norway came from people who visited Italy and Austria to attend skiing events and related festivals in the Alps.

Luckily, we seem to have contained it well through isolating and treating those who came back from travelling. Now the rate of newly affected people is really low compared to neighbouring countries

You are with too many living close on each other. In most big cities, crowded areas it's a problem. In the Netherlands it started with people returning from.Italy and those celebrating Carnaval with Belgium and Germany.