Norway and Denmark have closed their borders as well as schools due to the virus. Sweden has so far done close to nothing and the government is actively discouraging testing.
Today some local news outlets had a headline saying "Sweden is closing its borders", https://www.svt.se/nyheter/utrikes/resor-till-sverige-stoppas
One minor detail makes this seemingly harsh move moot: It does not apply to travelers from within the EU. Airports will no longer allow flights from outside the EU but everyone from within the EU can still travel to Sweden. That includes people from countries with major outbreaks such as Germany, France, Italy and Spain...