WILMINGTON, Del. (AP) - President-elect Joe Biden on Tuesday called for urgent action on the coronavirus pandemic as he introduced a health care team that will be tested at every turn while striving to restore the nation to normalcy.Biden laid out three COVID-19 priorities for his first 100 days in office: a call for all Americans to voluntarily mask up during those 100 days, a commitment to administer 100 million vaccines and a pledge to try to reopen a majority of the nation's schools.“I know that out of our collective pain, we will find our collective purpose: to control the pandemic, to save lives, and to heal as a nation," Biden said.RELATED: Trump holds White House COVID-19 vaccine summit as Biden introduces health teamThe.