New COVID-19 cases and hospitalizations appear to be on a downward trajectory in the United States as the Biden administration remains confident that it can hit its target of 100 million vaccines in 100 days, the White House Coronavirus Task Force said on Wednesday. However, Rochelle Walensky, the director of the Centers for Disease Control and Prevention, warned that new COVID-19 variants popping up across the country could threaten that positive momentum. Anthony Fauci, the government's top infectious-disease expert, said Americans should continue to follow social distancing guidelines and added that there's no harm if people want to "double mask" for added protection. —Reuters Staff Source