U.S. health officials say the lack of reported travel history in a Colorado National Guardsman with a more contagious version of the coronavirus suggests the new variant is already spreading in the United States.
Dr. Henry Walke of the CDC says the arrival of the variant known as B.1.1.7 “was expected” given travel patterns between the U.S. and England, where the variant was first seen.
Walke says it’s still unclear how widely the variant has spread in the United States, or whether another concerning variant first seen in South Africa may have arrived.
Dr. Greg Armstrong of the CDC says he’s aware that several states, including California, Massachusetts and Delaware, are analyzing suspicious virus samples to look for the variant. He says the CDC is working with a national lab that gets samples from around the country to broaden that search, with results expected within days.
The U.S. lags behind other nations in performing full genome sequencing on the virus, but CDC officials on Wednesday mentioned several efforts to ramp up that type of complicated lab analysis, which can track and spot genetic changes in the virus that causes COVID-19.
CDC officials called for renewed commitment to wearing masks, avoiding crowds and washing hands.