You have to be fully vaccinated and provide a PCR-test (within 72 hours before the arrival) or Antigen-test (within 48 hours before the arrival), except for children under 6.
7-day quarantine is required for those who are not vaccinated.
Those who have been unlucky to get COVID-19 have to provide a positive PCR-test that was made no less than 10 days prior to the arrival.
This
site contains all the necessary information on the travel restrictions in effect for travel to Argentina due to COVID-19.
The entry regulations are subject to change, but we are monitoring the situation daily and will inform you of any changes as soon as possible.