The virus was spread by mosquitos. It caused the rabbits to die from hemorrhage or seizures- they usually die in about ten days. At first up to 99% of the rabbits were killed. But after a while the rabbits developed a genetic resistance to the virus- now only 40% of the rabbits were dying. In 1984 a new method of was founded in China. By 1995, Rabbit Hemorrhage Disease (RHD) was being utilized to lower the rabbit populations. The disease caused the rabbits to develop blood clots in the lungs, heart and kidneys. It was spread by flies. It ended up killing up to 90% of the rabbits. But that number lessened in time because the virus had little impact on cooler places where there are not a lot of mosquitos. About two years later, Calicivirus was introduced, but it was not effective because the rabbits developed a resistance to the virus. In 2000. Researchers in Italy discovered a new strain of Calicivirus. It has since spread across Europe, the United States and Uruguay. Though the Calicivirus research cost more than twenty million dollars, it has been working because it's has saved Australian agriculture over one billion dollars in the past thirteen
The virus was spread by mosquitos. It caused the rabbits to die from hemorrhage or seizures- they usually die in about ten days. At first up to 99% of the rabbits were killed. But after a while the rabbits developed a genetic resistance to the virus- now only 40% of the rabbits were dying. In 1984 a new method of was founded in China. By 1995, Rabbit Hemorrhage Disease (RHD) was being utilized to lower the rabbit populations. The disease caused the rabbits to develop blood clots in the lungs, heart and kidneys. It was spread by flies. It ended up killing up to 90% of the rabbits. But that number lessened in time because the virus had little impact on cooler places where there are not a lot of mosquitos. About two years later, Calicivirus was introduced, but it was not effective because the rabbits developed a resistance to the virus. In 2000. Researchers in Italy discovered a new strain of Calicivirus. It has since spread across Europe, the United States and Uruguay. Though the Calicivirus research cost more than twenty million dollars, it has been working because it's has saved Australian agriculture over one billion dollars in the past thirteen