Chikungunya viral infection (CVI) is a mosquito-borne infection, caused by chikungunya virus (CHIKV), an alphavirus, belonging to the family Togaviridae. This infection causes febrile illness associated with high fever, rash, acute deliberating and persistent arthralgia. There is no licensed vaccine or specific treatment for this infection. Ivermectin (IVM), commonly-used antiparasitic, has been demonstrated to inhibit replication of CHIKV.

Inclusion Criteria:

• patients with virologic confirmation of chikungunya infection who had symptoms less than 72 hours prior to visit

Exclusion Criteria:

• patients with virologic confirmation of chikungunya infection who had symptoms more than 72 hours prior to visit