United States U.S. will accept WHO-approved COVID-19 vaccines for international visitors
WASHINGTON, Oct 8 (Reuters) - The United States will accept the use by international visitors of COVID-19 vaccines authorized by U.S. regulators or the World Health Organization, the Centers for Disease Control and Prevention said late on Friday.
On Sept. 20, the White House announced the United States in November would lift travel restrictions on air travelers from 33 countries including China, India, Brazil and most of Europe who are fully vaccinated against COVID-19. It did not specify then which vaccines would be accepted.
A CDC spokeswoman told Reuters Friday, "Six vaccines that are FDA authorized/approved or listed for emergency use by WHO will meet the criteria for travel to the U.S."
Late on Friday, the CDC said that "earlier this week, to help them prepare their systems we informed airlines" of the vaccines that would be accepted and added "CDC will release additional guidance and information as the travel requirements are finalized."
也就是说，打了以后被CDC认为是“Fully vaccinated”？
CDC上面没找到，不知道哪里有官方来源。
链接不让发
October 8, 20219:16 PM EDTLast Updated a day ago
United States U.S. will accept WHO-approved COVID-19 vaccines for international visitorsWASHINGTON, Oct 8 (Reuters) - The United States will accept the use by international visitors of COVID-19 vaccines authorized by U.S. regulators or the World Health Organization, the Centers for Disease Control and Prevention said late on Friday.
On Sept. 20, the White House announced the United States in November would lift travel restrictions on air travelers from 33 countries including China, India, Brazil and most of Europe who are fully vaccinated against COVID-19. It did not specify then which vaccines would be accepted.
A CDC spokeswoman told Reuters Friday, "Six vaccines that are FDA authorized/approved or listed for emergency use by WHO will meet the criteria for travel to the U.S."
Late on Friday, the CDC said that "earlier this week, to help them prepare their systems we informed airlines" of the vaccines that would be accepted and added "CDC will release additional guidance and information as the travel requirements are finalized."
https://www.reuters.com/world/us/us-will-accept-who-approved-covid-19-vaccines-international-visitors-2021-10-08/
入境中国之前必须由中国领馆发给绿码， 就是你必须出示两次疫苗证明， 必须出示48还是72小时之内的核酸检测阴性证明。好像还有个抗体证明。
这些人如果回国后检测出了阳性， 病重的不多， 死亡率为零。 他们传染的人， 病重的也不多， 病死率也为零。
那么， 是不是可以这样理解， 疫苗对防重症防死亡是有用的， 而且，对于他们传染的人， 不管他们打了疫苗没有， 也没有多少重症，没有病亡。
这里姑且认为中国给出的数据是真实的。
接种疫苗的人感染了病毒再传染给别人，为什么会减少别人的重症呢？打过疫苗的人身上的病毒被改变基因了吗？那不是产生了变异？
互相矛盾的结果
“Health Digest”的报告结果与此前的研究结果不同。在此之前，作者阿普洛娃·曼达维利在美国《纽约时报》上发布的新研究表明，那些接种了新冠疫苗并被证实感染了德尔塔变异毒株的人员，其鼻子和咽喉区域携带着大量的病毒。
这与科学家们在接种过疫苗，并感染了前几种毒株的人员那里观察到的情况截然不同，因为这些人员似乎并不会将病毒传播给其他人。这就意味着，突破疫苗屏障而感染德尔塔毒株的人员——即接种了两剂量的新冠疫苗却仍然受到新冠变异病毒感染的人员，他们可能会像未接种疫苗者那样传播病毒，即便他们本身没有出现任何症状。
https://bbs.wenxuecity.com/health/997013.html
https://www.fmprc.gov.cn/ce/cgham/chn/lsyws/0/t1900224.htm