CHIKUNCUNYA arboviral disease transmitted by mosquitoes, appearing between 4 and 8 days after being bitten. It was first described by an outbreak recorded in southern Tanzania in 1952. The causative viruses are species of the genus Alphavirus, which are RNA viruses of the family Togaviridae. For 50 years it was confined to Africa and Asia. It has been presented since 2004 in almost the entire planet, except Australia and the poles.