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With a slew of embassy announcements making the rounds today, it appears that China will begin requiring all incoming passengers to present a negative COVID antibody test (in addition to their negative nucleic acid test) before boarding a direct flight to the country.
The move may be motivated by a number of cases in which COVID-19 patients were released from treatment only to later test positive for the virus once again. It’s not entirely clear whether these cases are caused by reinfection or because the patients’ symptoms subsided and the nucleic acid test gave a false negative, but China seems to think the latter is a large enough risk that it now wants to ban travelers who have ever had COVID, which can be revealed with an antibody test.
In fact, passengers were already being administered an antibody test upon arrival, but this is the first time the country has required the test before boarding a direct flight.
READ: The COVID Vaccine is Ready? Here's What You Need to Know
Image: Weill Cornell
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