Costa Rica reports first case of chikungunya from local mosquitoes

Although there have been 24 infections with the chikungunya virus in travellers returning to Costa Rica, only one new case acquired the infection from local mosquitoes. Of the 24 travellers, two have developed the long lasting residual joint pain characteristic of this disease.

Travellers to areas where chikungunya fever virus is active can reduce their risk of exposure to this virus by taking all necessary precautions to avoid mosquito bites. Many persons with chikungunya fever do not seek medical care and are not reported to health authorities. There may be many more cases in the community that are not reported. Chikungunya virus infections may have long lasting health consequences.