As of 08.11.2021, entry into the USA is now possible again.
Accordingly, the conditions are to be:
Negative test, which must not be older than 72 hours
complete vaccination (*All vaccines approved by the FDA and WHO are recognized, nothing is known yet about the recognition of cross-vaccinations).
and of course as usual the ESTA
Return trip: Currently, the United States is classified as a high risk area by the federal government.
vaccinated/recovered travelers only need entry registration
children under 12 need 5 days in quarantine (+entry registration)
Everything else as usual in our Facebook group