Dengue cases rise in Dominican Republic and Costa Rica

Dengue cases are rising in the Dominican Republic and Costa Rica, though health authorities in both countries say the situation remains under control. In the Dominican Republic, the Ministry of Public Health reported 213 confirmed cases as of epidemiological week 29 (July 19–25), up from 173 in the same period last year—an increase of 40 cases. The country has recorded one death, and the incidence rate stands at 3.46 per 100,000 inhabitants Source: eldiado. Authorities note the curve remains in the "success zone" of the endemic corridor, with no epidemic alert, but they warn that the highest transmission period historically occurs between weeks 30 and 45 Source: infobae.

In Costa Rica, the Ministry of Health reported 2,425 accumulated cases for week 29 of 2026, an 18% increase compared to the same period in 2025 (1,980 cases). Of these, 44 were classified as dengue with warning signs. The Central Norte region leads with 609 cases, while the Pacific Central region has the highest incidence rate at 176.8 per 100,000 inhabitants. Two people remain hospitalized Source: infobae.

Regional focus

In the Dominican Republic, the report also highlights the circulation of respiratory viruses: SARS-CoV-2 (3 cases), influenza A (H3N2) (2 cases), and parainfluenza (2 cases) were confirmed in week 29 Source: listindiario. Costa Rica's data shows a concentration in specific regions, prompting authorities to reinforce vector control and surveillance Source: infobae.

Prevention

Both countries emphasize eliminating mosquito breeding sites, using protective clothing, and installing screens. The OPS recommends scrubbing containers to remove eggs, as they can survive dry periods Source: infobae.