No known cases of hantavirus in U.S. as officials monitor 41 with possible exposure​No known cases of hantavirus in U.S. as officials monitor 41 with possible exposure 

 There are no known cases of hantavirus in the United States as of Friday morning, garnering a sense of hope stateside amid a global outbreak that has killed three people, sickened 10 and forced dozens into quarantine.  ​​There are no known cases of hantavirus in the United States as of Friday morning, garnering a sense of hope stateside amid a global outbreak that has killed three people, sickened 10 and forced dozens into quarantine.