Variant strain detected in US
Global Times
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A healthcare worker wheels a stretcher into the emergency room at Lenox Health Greenwich Village during the COVID-19 pandemic in New York, the United States, May 26, 2020. (Photo: Xinhua)

The first known US case of a highly infectious coronavirus variant discovered in Britain was detected in Colorado on Tuesday as US President-elect Joe Biden warned it could take years for most Americans to be vaccinated against COVID-19 at current distribution rates.

Biden's prediction of a grim winter appeared aimed at lowering public expectations that the pandemic would be over soon after he takes office on January 20, while putting Congress on notice that he wants to significantly increase spending to expedite vaccine distribution, expand COVID-19 testing and help reopen shuttered schools.

Biden, a Democrat, said about 2 million people have received the initial dose of one of two newly approved two-dose vaccines, well short of the 20 million that outgoing Republican President Donald Trump had promised by year's end.

"The effort to distribute and administer the vaccine is not progressing as it should," Biden said. At the current rate, "It's going to take years, not months, to vaccinate the American people."

Shortly after Biden's remarks, Colorado Governor Jared Polis said his state had discovered the nation's first known case of the highly infectious coronavirus variant, which was originally documented in the UK.

It has also been detected in several European countries, as well as in Canada, Australia, India, South Korea and Japan, among others.

Polis said in a statement the infected patient was a man in his 20s with no recent travel history who is currently in isolation in Elbert County, a semi-rural area on the outskirts of the greater Denver metropolitan area.

"Public health officials are doing a thorough investigation" and the individual has "no close contacts identified so far," Polis said, adding that the state had notified the US Centers for Disease Control and Prevention.

Colorado State Laboratory scientists confirmed the variant after noticing that a diagnostic test sample was missing a key gene signal, prompting them to sequence the patient's viral genome. This revealed eight mutations specific to the spike protein gene associated with the variant, Polis said in his statement.

Although experts believe the newly approved COVID-19 vaccines will be effective against the variant, the emergence of a more highly transmissible strain of the virus makes a swift rollout of immunizations all the more critical.