Dengue fever is an ongoing risk in Costa Rica. As of 20 November 2015, a total of 11 674 probable cases have been recorded thus far in 2015. Of those, 22 506 have been confirmed as dengue virus infections.
Advice for Travellers
Avoidance of mosquito bites, particularly during daylight hours, is recommended. Bite avoidance measures include: covering up with clothing, the use of insect repellent and bed nets impregnated with insecticide. Reduction of mosquito breeding sites around hotel rooms/homes is advised for longer term stays.