After March 24 , the US had the most active cases worldwide with over 53,000 people infected , ahead of Italy with under 60,000 , during the coronavirus pandemic .
As of March 25 , the U.S. has the most active cases in the world ( 54,071 ) , slightly ahead of Italy ( 54,030 ) .The first known case of in the U.S. was confirmed on January 20 , 2020 , in a 35-year-old man who had returned from Wuhan , China , five days earlier .
2020 coronavirus pandemic in the United States