Costa Rica has registered 300 cases of chikungunya in 2026, with an increase of 55 cases in the last week, representing a 22.4% rise. The Chorotega region concentrates more than half of the cases (158), followed by the Central North region (84). Alajuela is the canton with the most cases (65), followed by Carrillo (54), Santa Cruz (41), and La Cruz (39). The disease has returned to circulation after almost 10 years.
