As far as international tourism is concerned, Argentina is now allowing tourists from neighbouring countries to enter the country without quarantine.
And from 1 November, if the infection rate does not increase, Argentina will fully open to international tourism, requiring travellers to present a complete vaccination certificate (meaning they should have received their second dose two weeks before departure), a negative PCR test dating from up to 72 hours before departure. They will also have to do an antigen test at the airport when they arrive, and to do another test between the fifth and seventh day of their stay.
Unvaccinated tourists who want to visit Argentina will be able to, but they will have to go on quarantine for 10 days, and to do a test on the seventh day. If the test is negative, then they will be able to get out of quarantine.
According to the Ministry of Health, once 50% of the population has been fully vaccinated, the antigen test will also be eliminated, except for those who have not been vaccinated. The PCR test between the fifth and seventh day upon arrival will no longer be necessary either.