The more contagious variant of COVID-19 first found in the United Kingdom is officially in the U.S.

The first case was detected in Colorado, and the second in California.

Officials say the new variant is already in two states - the first case, a Colorado National Guardsman. The second, a 30-year-old man from San Diego.

Meanwhile, Dr. Anthony Fauci says spread is imminent, but while this new strain is considered more contagious, there's no evidence it's more deadly. "I'm not surprised that you have a case, and likely more cases in California and we [will] likely be seeing more reports from other states,” says Dr. Fauci. The New York State Department of Health continues to test to see if this new strain is here at home.

So far, it's analyzed more than 4,300 specimens, and it has not been found.

As of Monday, the U.S. requires all travelers from Britain to test negative for COVID-19 within three days of their flight. New York made the same decision, but a week earlier. This follows 120 other countries who decided to ban travel from the UK altogether or require travelers to get a test.

However, there is a bit of good news, doctors are optimistic the COVID-19 vaccines currently being administered are effective against the new variant.