WFAC 2012 travel guides:

1. Archers who fly to Argentina via Sao Paolo in Brazil may require a visa when they stay overnight in Brazil.
2. Argentina and Brazil are declared Yellow fever countries (even though not in Miramar) by the WHO and your government may require that you have a valid yellow fever vaccination on return to your country.
3. Archers from Australia, Canada and the USA will need to pay reciprocity fees on arrival in Argentina. The fees are US$ 140 for Australia and USA and US$ 75 for Canada. Other countries do not seem to be subject to these fees but we advise that you make sure.