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The US will require COVID-19 testing for travelers from China


The US announced new COVID-19 testing requirements Wednesday for all travelers from China, joining other nations imposing restrictions due to a surge of infections.

The increase in cases across China follows the rollback of the nation’s strict anti-virus controls. China’s “zero COVID” policies had kept China’s infection rate low but fueled public frustration and crushed economic growth.

In a statement explaining the restrictions, the US Centers for Disease Control and Prevention cited the surge in infections and what it said was a lack of adequate and transparent information from China, including genomic sequencing on the viral strains circulating in the country.

“These data are critical to monitor the case surge effectively and decrease the chance for entry of a novel variant of concern,” the CDC said.

Some scientists are concerned he COVID-19 surge in China could unleash a new coronavirus variant on the world that may or may not be similar to the ones circulating now. That’s because every infection is another chance for the virus to mutate.

“What we want to avoid is having a variant enter the US and spread like we saw with delta or omicron,” said Matthew Binnicker, director of clinical virology at the Mayo Clinic in Rochester, Minnesota.

But the CDC’s action may be less about stopping a new variant from crossing US borders and more about increasing pressure on China to share more information, said Dr. David Dowdy, an infectious disease epidemiologist at Johns Hopkins Bloomberg School of Public Health, adding he hopes the restrictions “aren’t kept in place longer than they need to be.”

“I don’t think it’s going to have a major impact in slowing the spread of COVID-19,” Dowdy said. “We have a whole lot of transmission of COVID-19 here within our borders already.”

Beginning Jan. 5, all travelers to the US from China will be required to take a COVID-19 test no more than two days before travel and provide a negative test before boarding their flight. The testing applies to anyone 2 years and older, including US citizens.

Other countries have taken similar steps in an effort to keep infections from spreading beyond China’s borders. Japan will require a negative COVID-19 test upon arrival for travelers from China, and Malaysia announced new tracking and surveillance measures. India, South Korea and Taiwan are requiring virus tests for visitors from China.

Lunar New Year, which begins Jan. 22, is usually China’s busiest travel season, and China announced Tuesday it will resume issuing passports for tourism for the first time since the start of the pandemic in 2020.

The US action is a return to requirements for some international travelers. The The Biden administration lifted the last of such mandates in June. At that time, the CDC continued to recommend that people boarding flights to the US get tested close to departure time and not travel if they are sick.

Early in the pandemic, the US barred entry to foreigners traveling from China, weeks after the virus first emerged there three years ago. Americans were allowed to return home and flights from China were funneled to selected airports where passengers were screened for illness. But the virus was already spreading in the US among people with no travel history.

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AP Science Writer Laura Ungar contributed.

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The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group. The AP is solely responsible for all content.



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