Coronavirus May Have Spread in U.S. for Weeks, Gene Sequencing Suggests – The New York Times March 1, 2020
Scientist: Genetic analysis suggests coronavirus has been spreading in Washington state for weeks March 1, 2020
Because of coronavirus, March Madness should be played without fans, players group says – pennlive.com March 1, 2020
Coronavirus outbreak in Italy spurs State Department warning for Americans not to travel to 2 regions | Fox News March 1, 2020
