[Redacted reference to deleted comment]
Chinese nationals as such have never been blocked from the U.S. If they hold green cards they can enter the U.S. If they haven't been to Mainland China or Schengen in the past 14 days they can enter the U.S.
Last edited by NewbieRunner; Jun 11, 2020 at 1:03 pm
Reason: Reference to deleted comment redacted by mod