Costa Rica is weighing whether to require proof of measles vaccination from some incoming travelers as health officials respond to renewed concern over imported cases and falling immunization coverage at home. The discussion follows two confirmed measles cases now under investigation in our country and a broader regional surge in infections across the Americas.
The Health Ministry said that two measles cases recently detected in Costa Rica remain stable and under follow-up. One involves a minor from Pococà and the other a 41-year-old woman from Dulce Nombre de Coronado. Authorities said both cases are being monitored as part of a broader epidemiological response.
Against that backdrop, there is an active debate over whether tourists should be asked to show measles vaccination before entering the country. Experts said the idea could reduce health risks, but tourism representatives warned it could also create economic friction for one of Costa Rica’s main industries. The same report said specialists pointed to another weakness closer to home: Costa Rica still has not reached the 95% vaccination coverage level widely cited as necessary to limit measles outbreaks.
Costa Rica has already moved to expand measles protection for travelers leaving the country. In February, the Costa Rican Social Security Fund announced measles vaccination for travelers ages 20 to 39 headed to countries with active outbreaks. It said travelers must be vaccinated at least 10 days before departure and present identification along with proof of travel.
The regional context also helps explain why the issue has gained urgency. PAHO warned in February that confirmed measles cases in the Americas rose sharply in early 2026. Its rapid risk assessment said 1,031 cases were confirmed in the region between epidemiological weeks 1 and 3, compared with 23 cases in the same period of 2025, a 45-fold increase. Mexico, the United States, Canada and Guatemala were among the countries reporting cases.
Costa Rica is not new to vaccine-based travel controls. The Health Ministry updated its yellow fever rules in February and maintained mandatory vaccination for Costa Ricans and residents traveling to certain risk destinations, including Colombia, Brazil, Peru and countries in Africa, depending on the date and route involved.
That existing framework matters because it shows Costa Rica already uses vaccination rules in cross-border health policy. But so far, there is no official announcement of a new blanket measles vaccine requirement for all incoming travelers. What exists now is a public debate, rising concern among health officials, and a regional outbreak trend that is putting more pressure on governments to review their defenses.
For now, Costa Rica’s immediate response remains focused on surveillance, case tracing and vaccination of outbound travelers rather than a formal new entry rule for tourists. Still, with measles cases climbing across the hemisphere and Costa Rica tracking fresh domestic cases, the question of vaccination requirements for visitors is no longer theoretical.
