Several senior US officials including Vice President Mike Pence got early COVID-19 vaccinations Friday, contrasting with Europe, where two leaders were quarantining after testing positive and EU regulators have yet to approve a vaccine.

President-elect Joe Biden, who will take office on January 20, announced he would take the vaccine, also in public, on Monday. Yet, in hard-hit Europe, unease mounted after Slovakia’s 47-year-old Prime Minister Igor Matovic tested positive on Friday for COVID-19 a week after attending a European Union summit in Brussels.