1. Требование о вакцинации будет распространяться на всех иностранцев, а не только лишь на въезжающих из стран под прокламацией.
2. Приниматься будут вакцины, одобренные ВОЗ (то есть будут принимать в том числе китайский Синовак и Синофарм, индийский Covishield, но не российский Спутник).
https://www.nytimes.com/2021/09/22/travel/us-international-travel-vaccine.html
What does fully vaccinated mean? Which vaccines will be accepted?
A spokeswoman for the Centers for Disease Control and Prevention said in a statement that the agency is still in the “regulatory process,” but said that people are considered fully vaccinated two weeks after their second dose of a Pfizer or Moderna vaccine, or two weeks after a single-dose vaccine, such as the Johnson & Johnson vaccine. Vaccines listed for emergency use by the World Health Organization, such as AstraZeneca and Oxford, will also be valid, the C.D.C. said.
How do the new rules affect people from countries that were not on the banned list?
The new policy applies to everyone who is not a U.S. citizen, including individuals from Japan, Singapore, Mexico and many other countries whose citizens have been able to fly to the United States throughout the pandemic. Though vaccination status does not currently affect whether or not these individuals can enter the United States, in November only fully vaccinated travelers will be permitted.