What are the health risks for Americans traveling to Costa Rica? I am going on holiday in Costa Rica in a week and didn't realize that I should have gotten vaccinated. I will stick to bottled water but what else should I be concerned about? I'll be staying in San Jose and then going up to Liberia and northwest Costa Rica. Also are you allowed to bring packaged food into the country? Are there any foods I should avoid in Costa Rica? I'm very nervous so please help.