El Niño Southern Oscillation, overseas arrivals and imported chikungunya cases in Australia: A time series analysis

摘要

BackgroundChikungunya virus (CHIKV) is an emerging mosquito-borne pathogen circulating in tropical and sub-tropical regions. Although autochthonous transmission has not been reported in Australia, there is a potential risk of local CHIKV outbreaks due to the presence of suitable vectors, global trade, frequent international travel and human adaptation to changes in climate.