LKS 20201017 LKS 20201016 GDN; Finland's Prime Minister Sanna Marin wearing face mask arrives on the second day of a two days face-to-face EU summit, in Brussels, on October 16, 2020. - Finnish Prime Minister Sanna Marin left an EU summit on October 16, 2020, to self-isolate as a precaution after attending a meeting earlier in the week with a Finnish MP who has since tested positive for Covid-19, the government said. LEHTIKUVA / AFP Johanna Geron