Worobey and Bedford say they estimate the virus would have arrived in the US in mid-November. Both scientists, as well as others around the world, have scoured genetic sequences of coronavirus in the United States to see if any match up with the UK variant. So far, they haven't found any, but they say that's likely because the US surveillance system isn't catching them. Health officials agree. "You really need to assume that it's here already, and certainly is not the dominant strain, but I would not be surprised at all if it is already here,"[said] Dr. Anthony Fauci…