A bad year for dengue and chikungunya in Costa Rica

Dengue fever: early in this year, there were reports of approximately 1,000 new cases of dengue fever every week. At present, this number has been reduced to about 100 newly infected people per week. The most affected areas include Atenas, Alajuela, Pérez Zeledón, Quepos and Parrita.

Chikungunya: early this year, there were reports of approximately 300 new cases every week, but currently that number has been reduced to about 8 newly infected people per week. The most affected area is Chorotega.

Visit our Health Library for more information on exposure to and the prevention of Chikungunya Fever and Dengue Fever.

Advice For Travellers

The absence of reports from other places does not mean that there is no dengue fever transmission there. The risk of exposure to these viruses will vary from place to place and may be high in many localities.

All travellers to areas where these viruses are active can reduce their risk of exposure by taking all necessary precautions to avoid mosquito bites. Many persons with dengue or chikungunya infections do not seek medical care and are not reported to health authorities. There may be many more cases in the community than the reports indicate.

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