The US has failed to recognize the coronavirus threat from Europe in time, Robert Redfield, Director of the Centers for Disease Control and Prevention (CDC), has said.
As per reports, since the country's COVID-19 pandemic broke out, the US has reported over 4.4 million confirmed cases and over 150,000 deaths.
"The introduction from Europe happened before we realized what was happening," Redfield said in an interview.
"By the time we realized (the) Europe threat and shut down travel to Europe, there were probably already two or three weeks of 60,000 people coming back every day from Europe," he said.
The US government closed off travel with China on February 2, while flights with Europe were not cut off until March 13, by which time 26 cases had been confirmed in New York City.
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Samples of the earliest COVID-19 specimens in New York City resembled those circulating in Europe, according to a CDC report released in mid-July.
The US currently accounts for the world's highest number of infections and fatalities at 4,426,982 and 150,713, respectively, according to a report by the Johns Hopkins University.