Experts warn of chikungunya threat

A once-forgotten mosquito-borne virus has now become a trigger of major disease outbreaks worldwide, leaving Australian travellers vulnerable to the infection, experts warn.

An article published last month in the Lancet said chikungunya had long been endemic to tropical areas, but was increasingly being transmitted globally by infected travellers.

The Aedes mosquitoes that carry the virus were also becoming established in new regions