ITM! I’m hoping we can get some verification on that too. For anyone who is not a listener of the Best Podcast in the Universe... here’s a note from a listener about OP’s question.

“In the morning, My wife is a roller coaster engineer for Universal Studios Orlando. She's getting asked to go help finish their new park in Beijing, set to open this summer. HR gave her the rundown on what it takes to get into China right now. I'll work backwards. When you get there, you have to quarantine for 2 weeks in what is essentially a Chinese Motel 6 with hall monitors. You can't leave your room or they shout at you in Chinese. They bring you food every meal. You can't go outside, and you can barely do laundry. What I found more interesting is what you need to do before you go. They want you to take both tests, the PCR and the antibody test. You cannot test positive on either. It seems strange that they wouldn't want people with the antibodies, but you could say they're being careful. BUT, the strangest thing I found out is that if you've had either the Pfizer or Mederna vaccines, you are not allowed to enter the country. I can't imagine this would be a political gambit as Universal Studios is spending many Billions of dollars in China on this new park. What do they know that we do not?”