CHIKV na-ebunye mmadụ site na anwụnta nke genus Aedes, nke bụkwa ndị na-ahụ maka mgbasa nke dengue, zika na fever fever. Anwụnta ezinụlọ abụọ eke nwere ike ibunye nje Zika, Aedes aegypti na ebe okpomọkụ ma ọ bụ subtropical zones, na Aedes albopictus (Anwụnta "agụ") n'ebe ndị na-ekpo ọkụ karị.

Anwụnta (naanị nwanyị na-ata ata) na-ebute nje a site n'ịta onye ma ọ bụ anụmanụ bu ọrịa wee nwee ike ibunye nje a site n'ịta onye ọzọ. Ndị ahụ eke na-arụsi ọrụ ike na mmalite na njedebe nke ụbọchị.

Nje virus CHIKV, mgbe mmiri anwụnta na-agbanye n'ime nwoke ma ọ bụ nwanyị, na-efesa n'ime ọbara na lymph nodes, wee rute akụkụ ahụ ụfọdụ, tumadi usoro ụjọ na nkwonkwo.

Onye butere chikungunya anaghị efe efe mmadụ ọzọ. N'aka nke ọzọ, ọ bụrụ na anwụnta takwara ya ọzọ eke, ọ na-ebunye ya nje ahụ, anwụnta a nwekwara ike ibunye onye ọzọ ọrịa ahụ.

Enwere ike ibunye nje chikungunya site na mmịnye ọbara ma ọ bụ n'ịkwanye akụkụ ahụ, ya mere ihe eji kpachara anya na-ewepụ ndị nwere ọrịa ahụ inye onyinye ọbara. Enwere ike ibunye nje a site na nne na nwa mgbe ọ dị ime ma ọ bụ na-amụ nwa.