Researchers and scientists of Queensland have begun an investigation over the Hendra virus. Researchers, this time, would be studying the deadly virus to know as to why some horses do get affected by it while others don't.

The most popular assertion is that horses resting under the tree are more likely to be affected by it. Hendra virus is caused by flying foxes. The flying foxes are quite active under the tree or on the tree and therefore the chances of a horse of being affected with Hendra virus double, while resting under the tree.

Dr. Hume Field from Biosecurity Queensland said, "On more than 80 per cent of properties where there were Hendra virus cases, horses `camped' under trees that flying foxes were feeding in. stopping horse access to fruiting and flowering trees that may attract flying foxes".

Previous cases of Hendra virus will be studied to better understand the lethal virus. Researchers are hopeful that by studying the cases of 2011, they will be able to find a concrete and effective solution to the wide spreading virus. Last year, outbreak of Hendra virus was reported in northern NSW, which caused death to a number of horses.