A year in pandemic: How COVID-19 changed the world January 31, 2020National Institutes of Health official Dr. Anthony Fauci (C) speaks about the coronavirus during a press briefing at the White House in Washington, D.C. Health and Human Services Secretary Alexander Azar (L) announced that the United States is declaring the virus a public health emergency and issued a federal quarantine order of 14 days for 195 Americans. Photo by Leigh Vogel/UPI | License Photo February 6A subway carriage is nearly empty during a normally busy rush hour as the deadly coronavirus continues to threaten Beijing. Photo by Stephen Shaver/UPI | License Photo