By james art 
The current Onga outbreak in Puerto Rico is the first of 2013, which marks an unusually long gap between the outbreaks. In 2025, residents and about 5 million visitors to the United States will continue to be at risk of this mosquito disease.
According to US Centers for Disease Control and Prevention (CDC) MMWR (74 (5); 54-60), published on February 20, 2025, this Ongga outbreak begins atypical during the low show season and intensified in the high season. The number of cases reached a peak in October and remained increased until December 2024.
This model provokes concerns about the potential for a high transmission, which continues next season at Denega, which coincides with the annual influx of resting from the United States.
In 2024, the highest dent frequency was observed in the younger age groups, especially those aged 10-19 years. In contrast, most fatal cases have been observed among adults.
Geographically, although the highest number of cases were in the municipality of San Juan, with over 2 million inhabitants, the highest detega frequency occurred in Rincon, Lares and Marica, all municipalities outside the metropolitan areas in Central and West Puerto Rico.
CDC writes: “People living in or trip to Puerto Rico should use an environmental agency – approved repellents, wear protective clothing and stay in places with doors and windows screens. In addition, healthcare providers should maintain great suspicion of dengue among fever persons and potential mosquito exposure to Puerto Rico.
The continuing Ongga outbreak emphasizes the increasing risk of Denga throughout the region of America, as the region reported a record number of cases in 2024, about 13 million.
CDC says that more efficient dengue control and prevention tools, including safe and effective dengue vaccines for all age groups and scales, are needed urgently to protect risk populations in Endemic and travelers from Endemic Populations areas without endemic dengue.
In June 2024, the CDC updated a healthcare network for healthcare, notifying healthcare providers, public health organizations and the public about the increased risk of local dengue infections in areas such as Southeast Florida, a 2.5-hour flight from San Juan.
Last year, the health department in Florida reported over 999 associated trips and 91 locally acquired Denga cases throughout the country.
CDC does not recommend protective vaccination as the US has not been available in the United States in the US in the United States in late February 2025. However, new, innovative vaccines that are approved by the US FDA can fill this void.