translation.en: Humans are mainly infected through mosquito bites, although infection through organ transplantation and blood transfusion has been documented, as has trans-placental transmission.
translation.sk: Ľudia sa nakazia najmä po bodnutí moskytom, no zdokumentovaná bola aj nákaza pri transplantácii orgánov a transfúzii krvi a tiež prenos cez placentu.