Australia releases a deadly virus to wipe out rabbit populations

A deadly strain of a virus has been released by Australian authorities throughout its territory to wipe out its wild rabbit populations. The pathogen, which causes the hemorrhagic disease, is as lethal as Ebola and as contagious as the flu. In just a couple of months, the virus has eliminated 42% of the wild, according to preliminary figures from the Government of New South Wales, Australia's most populous state.
European rabbits were introduced in 1859 on the greater island by an English settler, Thomas Austin. The animals, with hardly any predators, became a plague. A rabbit can have each year more than five layers, up to five rabbits each. Before the plague, the Australian authorities decided in 1900 to raise a fence of 1,700 kilometers to prevent the passage of the rabbits to the western part of the island. It did not work. In the 1920s, there were about 10 billion wild rabbits in Australia, according to government estimates.