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

ABSTRACT:

Background

Chikungunya 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.

Methodology/principal findings

A time series seasonal decomposition method was used to investigate the seasonality and trend of monthly imported CHIKV cases. This pattern was compared with the seasonality and trend of monthly overseas arrivals. A wavelet coherence analysis was applied to examine the transient relationships between monthly imported CHIKV cases and southern oscillation index (SOI) in time-

SUBMITTER: Huang X 

PROVIDER: S-EPMC6544329 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature