Scientists are investigating whether flying foxes are involuntarily reacting to the loss of habitat in Queensland by spreading deadly viruses including Hendra.
Researchers are looking into a rising number of flying fox-related viral outbreaks in other parts of the world, including the deadly ebola virus in Africa and the 2003 SARS epidemic in southern China.
CSIRO virologist Dr Linfa Wang has told the ABC's Background Briefing there is an emerging theory that the animals' immune systems are reacting to human interference.
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