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Dr. Anthony Fauci helped guide the U.S. through the COVID crisis, and earlier in his career played a key role in the response to AIDS. He has served under seven presidents.

Dr. Anthony Fauci, the nation's top infectious disease expert, tells CNN that young children should be able to go trick-or-treating outdoors for Halloween this year.

Cases are up in some states, but the Biden administration's chief medical adviser says that "hopefully ... the vaccine is going to win this one." He urges continued mask-wearing and other measures.

Trump supporters are the least likely to say they will seek a COVID-19 vaccine when one becomes available to them. Of the hesitancy among Republicans, Dr. Anthony Fauci says, "I just don't get it."

The WHO declared a pandemic. The NBA shut down its season. President Trump banned travel from Europe. Tom Hanks tested positive. On one day a year ago, the coronavirus became very real in America.

Dr. Anthony Fauci, the president's chief medical adviser and the nation's top infectious disease official, is urging Americans to limit their gatherings to household members on Super Bowl Sunday.