TOPSHOT - US President Donald Trump addresses the Nation from the Oval Office about the widening novel coronavirus (Covid-19) crisis in Washington, DC on March 11, 2020. - President Donald Trump announced on March 11, 2020 the United States would ban all travel from Europe for 30 days starting to stop the spread of the coronavirus outbreak. "To keep new cases from entering our shores, we will be suspending all travel from Europe to the United States for the next 30 days. The new rules will go into effect Friday at midnight," Trump said in an address to the nation. (Photo by Doug Mills / POOL / AFP)