Tourist facilities, particularly in the capital city of San Jose, are generally adequate. English is widely spoken. A valid passport is required to enter Costa Rica. At the discretion of Costa Rican authorities, travelers are sometimes admitted with a certified copy of their U.S. birth certificate and valid photo I.D. for tourist stays up to 90 days. Costa Rica has suffered a reemergence of dengue fever in recent years, although the incidence remains lower than in other Central American countries.
Dengue is transmitted by mosquito bite and there is no vaccine.
Travelers should take steps to avoid mosquito bites. Medical care in San Jose is adequate. However, in areas outside of San Jose, medical care is more limited. Doctors and hospitals often expect immediate cash payment for health services. U.S. medical insurance is not always valid outside the United States.