Start in some countries Tighten the prevention measures for Chinese immigration passengers /Span> , the United States has epidemic prevention experts, wherever it isThere are a large number of crown diseases, and new variants may also occur, which is meaningless to travel restrictions from Chinese passengers.Not According to the Washington Post last Saturday (December 31, 2022), the change of coronal virus is uncertain. There is no reason to think that the surge in China will create special conditions for new mutant strains.Not Maria Van Kerkhove, a WHO epidemic, said that there are currently more than 500 branches of Omikon strains spreading globally, and there are virus variations in any place anywhere.risk.Not another expert Jeffrey Shaman also believes that travel restrictions seem to be to prevent the virus on the border, but now the virus is everywhere, which is meaningless to do so.Not The Scripps Research, Kristian Andersen, said that she "is more concerned about the risk of new variants brought by the virus brought by a large number of spreads.Life (maybe tens of thousands or hundreds of thousands) has died. We should do our best to help China and the Chinese people, including emergency transport mRNA vaccines. " NotMonitoring, pay close attention to virus variants from abroad (including China), and then compare it with the monitoring of the wastewater in the country to understand the situation of virus mutation more comprehensively.Not At present, some countries including the United States and the United Kingdom require passengers from China to test for mandatory crown disease before flight.Passengers from China and Italian requires entry testing from China. If they are positive, they need to be isolated.Morocco prohibits all tourists from China from entering.