When in August 2007 the Italian authorities notified an outbreak of Chikungunya virus in the northern region of Emilia-Romagna, this event represented the first documented autochthonous transmission of the virus on the European continent.
Ko so italijanske oblasti avgusta 2007 uradno obvestile o izbruhu bolezni čikungunja v severni deželi Emilija -Romanija, je ta dogodek pomenil prvi zapisani avtohtoni prenos virusa na evropsko celino.