Chikungunya virus (CHIKV), which causes CHIKF, is an alphavirus of the Togaviridae family, with a 12,000-nucleotides linear, positive-sense, single-stranded RNA genome containing two large open reading frames (ORF). The first, ORF1, encodes 4 non-structural proteins (nsP1, nsP2, nsP3 and nsP4) while ORF2 encodes structural proteins that include 1 capsid protein (C), 2 major envelope surface glycoproteins (E1, E2) and 2 small proteins (E3, 6K) [8, 9] . CHIKV is transmitted by Aedes mosquitoes (mainly A. albopictus and A. aegypti).