Infection Chikengunya virus is found in East Africa and has since 2006 spread throughout islands in the Indian Ocean (Reunion, Mauritius, Seychelles, Maldives) and Southeast Asia. Chikengunya virus is now found in India, Malaysia, Singapore and sporadically in Indonesia and Sri Lanka. The virus is transmitted between humans by mosquitoes of the Aedes family which bite in daylight.
Symptoms Fever, muscle and joint paint, swollen joints.
Diagnosis Positive blood test for specific antibodies in a person with fever who has travelled in an area with Chikengunya fever.
Treatment Pain tablets. There is no specific antiviral treatment.
Prevention Avoid mosquito bites during daytime by using repellents, long trousers and shirts with long sleeves.