Always remember to check the expiration dates on all medications, whether they are from home or abroad. Safety Information Travelers Diarrhea. Food and waterborne diseases are the number one cause of illness in travelers. Travelers diarrhea can be caused by viruses, bacteria, or parasites, which are found throughout the region and can contaminate food or water. Make sure your food and drinking water are safe.
Malaria is a preventable infection that can be fatal if left untreated.
Prevent infection by taking prescription antimalarial drugs and protecting yourself against mosquito bites. In Argentina, you are at risk for malaria only in northern rural areas bordering Bolivia and Paraguay. In Chile, the Falkland Islands, and Uruguay, there is no risk for malaria. Travelers to rural northern Argentina should take chloroquine to prevent malaria. A certificate of yellow fever vaccination is not required for entry into the countries in this region.